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Note P - Equity (Details Textual) - USD ($)			12 Months Ended
	Mar. 08, 2022	Jun. 18, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Preferred Stock, Shares Authorized (in shares)					5,000,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share)					$ 1
Stock Issued During Period, Value, Acquisitions				$ 600,003
Share-Based Payment Arrangement, Expense			$ 265,732	387,907
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture			$ 39,007	$ 76,043
Share Price (in dollars per share)			$ 3	$ 10.62	$ 39.78
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number (in shares)			9,266
Director [Member]
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture (in shares)			3,078	2,202
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture			$ 39,007	$ 76,043
Restricted Stock [Member]
Share-Based Payment Arrangement, Expense			$ 205,517	$ 218,552
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in shares)			16,404	15,444
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited (in shares)			3,752	583
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			3 years
In The Money Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number (in shares)			0	0	0
Employee Stock Purchase Plan [Member]
Common Stock, Capital Shares Reserved for Future Issuance (in shares)		43,834
Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent		85.00%
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares)			2,947	3,364
Swivel Secure Europe [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)	14,948
Business Combination, Indemnification Assets, Shares as of Acquisition Date (in shares)	4,983
Stock Issued During Period, Value, Acquisitions	$ 600,004
Business Acquisition, Share Price (in dollars per share)	$ 40.14
Share-Based Payment Arrangement, Expense			$ 4,343	$ 18,787
Share Price (in dollars per share)	$ 2.23

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The number of shares held for indemnification assets (amounts to be reimbursed if and when certain assumed liabilities are paid) recognized at the acquisition date of a business combination.

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