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Note M - Leases - Operating Lease (Details) $ in Thousands	Sep. 30, 2023 USD ($)
2023 (remaining)	$ 85
2024	114
2025 and thereafter	0
Total undiscounted operating lease payments	199
Less: Imputed interest	$ (1)
Weighted-average remaining lease term for operating leases (in years) (Year)	6 months 29 days
Weighted-average discount rate for operating leases	3.74%
Accrued Expenses And Other Liabilities And Other Long-term Liabilities [Member]
Present value of operating lease liabilities	$ 198
Right-of-use assets (recorded in other non-current assets)	198
Total operating lease liabilities	198
Other Current Liabilities [Member]
Current lease liabilities (recorded in other current liabilities)	198
Other Noncurrent Liabilities [Member]
Long-term lease liabilities (recorded in other long-term liabilities)	$ 0

X

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease due after second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

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X

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-6

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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-Section 50
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-URI https://asc.fasb.org//1943274/2147478964/842-20-50-6

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
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-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-6

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- Definition

Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

+ References

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-Topic 842
-SubTopic 20
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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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X

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

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X

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

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X

- Definition

Weighted average discount rate for operating lease calculated at point in time.

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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