Note D - Leases - Maturities of Finance and Operating Lease Liabilities (Details) - USD ($) $ in Thousands		Dec. 31, 2021		Dec. 31, 2020
2022, operating leases	[1]	$ 6,510
2022, finance leases		209
2023, operating leases	[1]	5,285
2023, finance leases		167
2024, operating leases	[1]	3,856
2024, finance leases		48
2025, operating leases	[1]	2,119
2025, finance leases		6
2026, operating leases	[1]	2,014
2026, finance leases		0
2027 & Beyond, operating leases		8,229
2027 & Beyond, finance leases		0
Total future minimum lease payments, operating leases	[1]	28,013
Total future minimum lease payments, finance leases		430
Less: Imputed interest, operating leases	[1]	2,650
Less: Imputed interest, finance leases		25
Total lease liabilities, finance leases		405
Short-term Lease Liabilities and Long-term Lease Liabilities [Member]
Total lease liabilities, operating leases		25,363	[1]	$ 27,328
Total lease liabilities, finance leases		$ 405		$ 630

[1] Non-cancelable sublease proceeds for the remainder of the fiscal year ending December 31, 2021 and the fiscal years ending December 31, 2022 and 2023 of $0.2 million, $0.6 million, and $0.2 million, respectively, are not included in the table above.