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Note D - Leases - Components of Lease Expense (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Operating lease cost $ 7,745 $ 8,646
Amortization of right-of-use assets 195 240
Interest on lease liabilities 27 45
Total Finance lease cost 222 285
Variable lease cost 2,604 3,085
Sublease income (1,153) (470)
Total lease cost, net 9,418 11,546
Operating cash flows from operating leases 15,287 18,777
Operating cash flows from finance leases 25 40
Financing cash flows from finance leases $ 227 $ 412
Weighted Average Remaining Lease term, Operating leases (Year) 6 years 1 month 28 days 6 years 18 days
Weighted Average Remaining Lease term, Finance leases (Year) 2 years 1 month 28 days 2 years 11 months 19 days
Weighted Average Discount Rate, Operating leases 3.45% 3.72%
Weighted Average Discount Rate, Finance leases 5.41% 6.74%