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Note F - Note Receivable (Details Textual) - USD ($)				9 Months Ended
	Feb. 06, 2024	Jul. 06, 2022	Feb. 25, 2022	Sep. 30, 2021	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2020
Financing Receivable, after Allowance for Credit Loss, Current, Total					$ 0	$ 0	$ 295,000
Receivable with Imputed Interest, Effective Yield (Interest Rate)				5.00%
Accounts Receivable, Allowance for Credit Loss						$ 186,000
Notes Receivable, Periodic Payment		$ 15,000	$ 1,000
Subsequent Event [Member]
Notes Receivable, Periodic Payment	$ 2,000

X

- Definition

The amount of periodic payment of notes receivable.

+ References

No definition available.

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- Definition

Amount of allowance for credit loss on accounts receivable.

+ References

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- Definition

Amortized cost, after allowance for credit loss, of financing receivable classified as current. Excludes net investment in lease.

+ References

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- Definition

Yield on the receivable, on which interest has been imputed, as calculated from its issuance value or purchase price. The calculated effective interest rate considers factors such as the issued face value or price paid for the receivable, the time period between payments, and the time until maturity [full receipt] of the receivable.

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