Note D - Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating lease cost	$ 5,832	$ 7,745
Amortization of right-of-use assets	166	195
Interest on lease liabilities	16	27
Total Finance lease cost	182	222
Variable lease cost	1,899	2,604
Sublease income	(828)	(1,153)
Total lease cost, net	7,085	9,418
Operating cash flows from operating leases	12,698	15,287
Operating cash flows from finance leases	15	25
Financing cash flows from finance leases	$ 194	$ 227
Weighted Average Remaining Lease term, Operating leases (Year)	5 years 11 months 1 day	6 years 1 month 28 days
Weighted Average Remaining Lease term, Finance leases (Year)	1 year 4 months 9 days	2 years 1 month 28 days
Weighted Average Discount Rate, Operating leases	3.55%	3.45%
Weighted Average Discount Rate, Finance leases	5.70%	5.41%