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Note A - The Company and Summary of Significant Accounting Policies - Summary of Accounts Receivable (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounts receivable	$ 1,234,411	$ 561,834
Foreign currency loss	(50,000)	(0)
Allowance for doubtful accounts	(213,785)	(13,785)
Accounts receivable, net of allowances for doubtful accounts	$ 970,626	$ 548,049

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