Document And Entity Information OTHER INCOME Schedule of Inventory, Current and Noncurrent [Table Text Block] Tabular disclosure of inventories. Note To Financial Statement Details Textual Significant Accounting Policies Note B - Inventories us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate Expected (provision) at US statutory rate Note D - Income Taxes and Available Carryforward Note H - Right-of-use Assets and Lease Liabilities pcyn_ProceedsFromPublicOfferingRequiredForMandatoryConversion Proceeds From Public Offering Required for Mandatory Conversion The gross proceeds from the entity's offering of stock to the public required for mandatory conversion of preferred stock to common stock. Note B - Inventories - Inventories (Details) Subsequent Events, Policy [Policy Text Block] Note D - Income Taxes and Available Carryforward - Provision for Income Tax Expense (Details) Note D - Income Taxes and Available Carryforward - Deferred Tax Assets and Liabilities (Details) LONG TERM LIABILITIES Note D - Income Taxes and Available Carryforward - Income Taxes Reconciliation (Details) Note H - Right-of-use Assets and Lease Liabilities - Right-of-use Assets and Liabilities (Details) Income Tax Disclosure [Text Block] Notes To Financial Statements Notes To Financial Statements [Abstract] pcyn_AssetsNoncurrentExcludingPropertyPlantAndEquipment Assets, Noncurrent, Excluding Property, Plant and Equipment Sum of the carrying amounts as of the balance sheet date of all assets, other than property, plant and equipment, that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer. us-gaap_LiabilitiesCurrent TOTAL CURRENT LIABILITIES PPP Loan [Member] Represents information pertaining to the PPP loan. Earnings Per Share, Policy [Policy Text Block] NET SALES OPERATING EXPENSES us-gaap_LesseeOperatingLeaseTermOfContract Lessee, Operating Lease, Term of Contract (Month) Depreciation us-gaap_ConversionOfStockSharesConverted1 Conversion of Stock, Shares Converted (in shares) Inventories Inventory, Noncurrent, Total us-gaap_AssetsCurrent TOTAL CURRENT ASSETS Share-Based Payment Arrangement [Policy Text Block] Stockholders' Equity Note Disclosure [Text Block] Interest Income Common Stock, no par value, 80,000,000 shares authorized; 8,087,388 shares issued and outstanding. Adjustments to reconcile net income to net cash provided by operating activities: Common stock, authorized (in shares) Common stock, issued (in shares) us-gaap_LesseeOperatingLeaseDiscountRate Lessee, Operating Lease, Discount Rate pcyn_LesseeOperatingLeaseMaximumYearlyIncreaseOfRent Lessee, Operating Lease, Maximum Yearly Increase of Rent The percentage of maximum yearly increase of rent for operating lease of the lessee. Common stock, no par value (in dollars per share) pcyn_LesseeOperatingLeaseRentPerMonth Lessee, Operating Lease, Rent Per Month The amount of rent per month for operating lease of the lessee. us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount Valuation Allowance pcyn_OperatingLeasePrincipalPayments Increase in Operating Lease Liability Amount of cash outflow for principal payment on operating lease. Valuation allowance Deferred Tax Assets, Valuation Allowance Valuation allowance Statistical Measurement [Domain] us-gaap_OperatingLeasePayments Payments on lease liabilities Operating Lease for Warehouse [Member] Represents operating lease for warehouse. Minimum [Member] Lessee, Operating Leases [Text Block] Operating Lease For Office Equipment [Member] Represents operating lease for office equipment. Lessee, Operating Lease, Right-of-Use Assets and Liabilities [Table Text Block] The tabular disclosure for right of use assets and liabilities for operating lease of the lessee. Accounts Payable us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares) Statistical Measurement [Axis] Series A Cumulative Convertible Preferred Stock, no par value; 4,000,000 shares authorized; 167,100 shares issued and outstanding. Preferred stock, issued (in shares) Interest Paid us-gaap_PolicyTextBlockAbstract Accounting Policies Taxes Paid Preferred Stock, No Par Value us-gaap_DeferredTaxAssetsGross Total deferred tax assets Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized (in shares) us-gaap_DeferredIncomeTaxLiabilities Total deferred tax (liabilities) us-gaap_InventoryNet Inventories Unusual or Infrequent Item, or Both [Axis] Unusual or Infrequent Item, or Both [Domain] us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion Convertible Preferred Stock, Shares Issued upon Conversion (in shares) Unusual or Infrequent Items, or Both, Disclosure [Text Block] us-gaap_PaymentsToAcquirePropertyPlantAndEquipment Purchase of property & equipment Finished Goods us-gaap_InventoryGross Inventory, Gross, Total us-gaap_PreferredStockAmountOfPreferredDividendsInArrears Preferred Stock, Amount of Preferred Dividends in Arrears Deferred Income Taxes Amount of gross deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. CURRENT LIABILITIES us-gaap_PreferredStockDividendRatePerDollarAmount Preferred Stock, Dividend Rate, Per-Dollar-Amount (in dollars per share) pcyn_LesseeOperatingLeaseRentPerMonthFirstFourMonths Lessee, Operating Lease, Rent Per Month, First Four Months Represents the monthly rent of operating lease of lessee for the first four months. Increase (Decrease) in Operating Lease Liability pcyn_LesseeOperatingLeaseRentPerMonthBeginningAfterFifthMonth Lessee, Operating Lease, Rent Per Month, Beginning 5th Month Represents the monthly rent of operating lease of lessee beginning after fifth month. Raw Materials pcyn_LesseeOperatingLeaseMinimumYearlyIncreaseOfRent Lessee, Operating Lease, Minimum Yearly Increase of Rent Represents the percentage of minimum yearly increase of rent for operating lease of the lessee. Operating Lease for Office Space [Member] Information pertaining to operating lease for office space. SUPPLEMENTAL DISCLOSURES us-gaap_Assets TOTAL ASSETS Plan Name [Axis] Plan Name [Domain] CASH FLOWS FROM OPERATING ACTIVITIES us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic Basic net income available to common shares us-gaap_OperatingLeaseInitialDirectCostExpenseOverTerm Operating Lease, Initial Direct Cost Expense, over Term Allowance for doubtful accounts The 2009 Option Plan [Member] Represents the information pertaining to the 2009 Stock Option Plan. Statement [Line Items] Accrued compensated absences Accounts Receivable, allowance for doubtful accounts Accounts Receivable, less allowance for doubtful accounts of $13,569 and $13,569 respectively. Share based payments Paid-in Capital Accrued bonus Net Deferred Tax Asset us-gaap_PreferredStockDividendsAndOtherAdjustments Dividend requirements on preferred stock STOCKHOLDERS' EQUITY us-gaap_NonoperatingIncomeExpense Nonoperating Income (Expense), Total NOL and contribution carryforwards CURRENT ASSETS Net (Loss) / Income Net Income (Loss) NET (LOSS) / INCOME Intangible Asset us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations CASH AT BEGINNING OF PERIOD CASH AT END OF PERIOD us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect NET CHANGE IN CASH us-gaap_NetCashProvidedByUsedInFinancingActivities NET CASH PROVIDED BY /(USED IN) FINANCING ACTIVITIES OTHER ASSETS us-gaap_Liabilities TOTAL LIABILITIES us-gaap_OperatingIncomeLoss (LOSS) / INCOME FROM OPERATIONS us-gaap_NetCashProvidedByUsedInOperatingActivities NET CASH (USED IN) / PROVIDED BY OPERATING ACTIVITIES us-gaap_NetCashProvidedByUsedInInvestingActivities NET CASH (USED IN) INVESTING ACTIVITIES Prepaid Expenses The 2020 Option Plan [Member] Represents information regarding the Procyon Corporation 2020 Stock Option and Incentive Plan. us-gaap_GrossProfit GROSS PROFIT COST OF SALES Lease liabilities - operating leases Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from operating lease liabilities. Commitments and Contingencies Disclosure [Text Block] us-gaap_DeferredTaxLiabilitiesLeasingArrangements Right-of-use-assets - operating leases PROPERTY AND EQUIPMENT, NET us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment Excess of tax over book depreciation Right of Use Asset Amortization Amount of amortization expense (reversal of expense) for right-of-use asset from operating lease. CASH FLOW FROM INVESTING ACTIVITIES Retained Earnings, Appropriated [Member] State us-gaap_CurrentStateAndLocalTaxExpenseBenefit us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit State Additional Paid-in Capital [Member] Federal us-gaap_CurrentFederalTaxExpenseBenefit Common Stock [Member] us-gaap_DeferredFederalIncomeTaxExpenseBenefit Federal Preferred Stock [Member] us-gaap_IncomeTaxExpenseBenefit INCOME TAX (EXPENSE) Income Tax (Expense) us-gaap_IncreaseDecreaseInAccruedLiabilities Accrued Expenses us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit Deferred Federal, State and Local, Tax Expense (Benefit), Total Equity Components [Axis] Equity Component [Domain] us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefit Current Federal, State and Local, Tax Expense (Benefit), Total us-gaap_IncreaseDecreaseInAccountsPayable Accounts Payable us-gaap_NotesPayable Notes Payable, Total us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest (LOSS) / INCOME BEFORE INCOME TAXES us-gaap_LineOfCredit Long-Term Line of Credit, Total Cash pcyn_EffectiveIncomeTaxRateReconciliationLossCarryforwardAmount Change in estimates of loss carryforward Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to change in estimates of losses carryforward. Certificates of Deposit, plus accrued interest Document Quarterly Report Amendment Flag Entity Incorporation, State or Country Code Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Document Transition Report City Area Code Entity Interactive Data Current us-gaap_SharesOutstanding Balance (in shares) Balance (in shares) Common stock, outstanding (in shares) Preferred stock, outstanding (in shares) Current Fiscal Year End Date (Decrease) Increase in: us-gaap_VariableLeaseCost Variable Lease, Cost us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent Operating Lease, Weighted Average Discount Rate, Percent Document Fiscal Period Focus us-gaap_IncreaseDecreaseInDepositOtherAssets Deposits Document Fiscal Year Focus Document Period End Date ROU assets - operating leases obtained in exchange for lease liabilities - operating leases us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1 Operating Lease, Weighted Average Remaining Lease Term (Year) us-gaap_IncreaseDecreaseInPrepaidExpense Prepaid Expenses Entity File Number Entity Emerging Growth Company Document Type Entity Small Business Entity Shell Company Document Information [Line Items] us-gaap_DividendsPreferredStock Dividends, Preferred Stock, Total Document Information [Table] Operating Lease for Certain Office Equipment [Member] Represents operating lease for certain office equipment. Entity Filer Category Debt Instrument [Axis] Entity Current Reporting Status Debt Instrument, Name [Domain] Increase (Decrease) in Operating Lease Right-of-use Asset Represents increase (decrease) in operating lease right-of-use asset. Weighted average number of common shares outstanding, diluted (in shares) us-gaap_IncreaseDecreaseInAccountsReceivable Accounts Receivable Entity Tax Identification Number Entity Central Index Key us-gaap_OperatingLossCarryforwards Operating Loss Carryforwards Entity Registrant Name Entity [Domain] Legal Entity [Axis] Statement [Table] Entity Address, Address Line One Statement of Financial Position [Abstract] Diluted net income per common share (in dollars per share) Weighted average number of common shares outstanding (in shares) Entity Address, City or Town us-gaap_EffectiveIncomeTaxRateContinuingOperations Effective Income Tax Rate Reconciliation, Percent, Total Entity Address, Postal Zip Code Basic net income per common share (in dollars per share) Entity Address, State or Province Statement of Cash Flows [Abstract] Entity Common Stock, Shares Outstanding Lease Contractual Term [Domain] Statement of Stockholders' Equity [Abstract] Lease Contractual Term [Axis] Income Statement [Abstract] us-gaap_IncreaseDecreaseInInventories Inventory Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Local Phone Number Schedule of Deferred Tax Assets and Liabilities [Table Text Block] us-gaap_TableTextBlock Notes Tables us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity Line of Credit Facility, Maximum Borrowing Capacity Accounting Standards Update and Change in Accounting Principle [Text Block] Selling, General and Administrative us-gaap_LiabilitiesNoncurrent TOTAL LONG TERM LIABILITIES CASH FLOW FROM FINANCING ACTIVITIES us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance Change in valuation allowance us-gaap_OperatingCostsAndExpenses Operating Costs and Expenses, Total us-gaap_LiabilitiesAndStockholdersEquity TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY (Increase) Decrease in: Accumulated Deficit Convertible Preferred Stock [Member] Debt Disclosure [Text Block] Paycheck Protection Program CARES Act [Member] Represents loan designed to provide funds for small businesses to keep their employees on the payroll. us-gaap_InterestExpenseDebt Interest Expense, Debt, Total us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense Amortization of ROU assets since lease inception us-gaap_StockholdersEquity TOTAL STOCKHOLDERS' EQUITY Balance Balance us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements us-gaap_IncomeTaxReconciliationNondeductibleExpense Nondeductible Expense Inventory Disclosure [Text Block] Lease Liability - Long Term Lease liabilities - operating leases due after September 30, 2022 Class of Stock [Axis] Class of Stock [Domain] us-gaap_OperatingLeaseLiability Lease liabilities - operating leases on adoption date and increase in lease liabilities Lease liabilities - operating leases on Comprehensive Income (Loss) [Table Text Block] Lease Liability, Current us-gaap_OperatingLeaseLiabilityCurrent Lease liabilities - operating leases due in the 12 months Deposits ROU Assets - Operating Leases ROU assets - operating leases pcyn_AccruedLiabilitiesAndEmployeeRelatedLiabilitiesCurrent Accrued Expenses Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes State income tax net of federal (provision) Salaries and Benefits pcyn_AccruedInterestOnCertificatesOfDeposit Accrued Interest on Certificates of Deposit Amount of accrued interest on certificates of deposit during the period.