Note 5 - Loans (Details Textual) - USD ($)		12 Months Ended
Mar. 20, 2021	Dec. 31, 2022	Dec. 31, 2021
Repayments of Long-Term Debt, Total		$ 54,771	$ 39,802
Debit Arrangement to Finance Purchase of Output Solutions Sorter [Member]
Debt Instrument, Face Amount	$ 165,996
Debt Instrument, Term (Month)	36 months
Debt Instrument, Periodic Payment, Total	$ 4,902
Debt Instrument, Annual Principal Payment	$ 58,821
Debt Instrument, Interest Rate, Stated Percentage	3.95%
Repayments of Long-Term Debt, Total		$ 54,634

Amount of the total principal payments made during the annual reporting period.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments including both interest and principal payments.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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