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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, 2023	Dec. 31, 2022	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Accounts receivable	$ 2,207,311	$ 2,096,569
Allowance for doubtful accounts	(1,005,785)	(573,785)
Accounts receivable, net	1,201,526	1,522,784	$ 1,499,218	$ 2,078,785	$ 2,462,203
Balance	573,785	213,785
Charged to costs and expenses	750,000	360,000
Deductions from reserves	(318,000)	0
Balance	$ 1,005,785	$ 573,785

X

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Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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