Note D - Leases - Maturities of Finance and Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Remainder of 2020, operating leases	$ 6,888
Remainder of 2020, finance leases	306
2021, operating leases	7,268
2021, finance leases	238
2022, operating leases	5,410
2022, finance leases	189
2023, operating leases	2,188
2023, finance leases	152
2024, operating leases	1,274
2024, finance leases	36
2025, operating leases	123
2025, finance leases
Total future minimum lease payments, operating leases	23,151
Total future minimum lease payments, finance leases	921
Less: Imputed interest, operating leases	1,579
Less: Imputed interest, finance leases	76
Total lease liabilities, operating leases	21,572	$ 21,730
Total lease liabilities, finance leases	$ 845	$ 896