Note L - Convertible Senior Notes - Schedule of Carrying Value of Convertible Senior Notes (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Mar. 05, 2019
Net carrying amount	$ 79,506	$ 78,680
The 5% Convertible Senior Notes Due 2024 [Member]
Principal	80,500		$ 80,500
Unamortized debt issuance costs	(994)
Net carrying amount	$ 79,506

Face (par) amount of debt instrument at time of issuance.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant