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Note A - The Company and Summary of Significant Accounting Policies (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2023

Dec. 31, 2022

Notes Tables

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

		March 31,				December 31,
		2023				2022
Accounts receivable		$	3,985,988			$	2,096,569
Allowance for doubtful accounts			(623,785	)			(573,785	)
Accounts receivable, net of allowances for doubtful accounts		$	3,362,203			$	1,522,784

		December 31,
		2022				2021
Accounts receivable		$	2,096,569			$	1,234,411
Loss on foreign currency			-				(50,000	)
Allowance for doubtful accounts			(573,785	)			(213,785	)
Accounts receivable, net of allowances for doubtful accounts		$	1,522,784			$	970,626

		Balance at Beginning of Year				Charged to Costs and Expenses				Deductions from Reserves				Balance at End of Year
Year ended December 31, 2022 Allowance for Doubtful Accounts		$	213,785			$	360,000			$	-			$	573,785
Year ended December 31, 2021 Allowance for Doubtful Accounts		$	1,733,785			$	200,000			$	(1,720,000	)		$	213,785

Useful Lives of Property Plan and Equipment [Table Text Block]

		Years
Equipment and leasehold improvements
Equipment			3	-	5
Furniture and fixtures			3	-	5
Software				3
Leasehold improvements		life or lease term

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

		Three Months Ended March 31,
		2023				2022
Selling, general and administrative		$	55,453			$	92,426
Research, development and engineering			15,922				17,271
		$	71,375			$	109,697

		Year ended December 31,
		2022				2021
Selling, general and administrative		$	310,017			$	269,368
Research, development and engineering			77,890				45,347
		$	387,907			$	314,715

Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]

		Total				Level 1				Level 2				Level 3
Convertible note at fair value		$	2,596,203			$	-			$	-			$	2,596,203

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Beginning balance		$	-
Purchases and issuances			2,200,000
Day one loss on value of hybrid instrument			396,203
Ending balance		$	2,259,203

X

- Definition

Tabular disclosure of the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

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Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

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