Note D - Leases - Maturities of Finance and Operating Lease Liabilities (Details) - USD ($) $ in Thousands		Sep. 30, 2020		Dec. 31, 2019
Remainder of 2020, operating leases	[1]	$ 7,171
Remainder of 2020, finance leases		249
2021, operating leases	[1]	4,842
2021, finance leases		220
2022, operating leases	[1]	3,490
2022, finance leases		196
2023, operating leases	[1]	2,377
2023, finance leases		59
2024, operating leases	[1]	300
2024, finance leases		13
2025, operating leases	[1]
2025, finance leases
Total future minimum lease payments, operating leases	[1]	18,180
Total future minimum lease payments, finance leases		737
Less: Imputed interest, operating leases	[1]	1,227
Less: Imputed interest, finance leases		60
Total lease liabilities, operating leases		16,953	[1]	$ 19,740
Total lease liabilities, finance leases		$ 677	[1]	$ 954

[1] Non-cancelable sublease proceeds for the remainder of the fiscal year ending December 31, 2020 and the fiscal years ending December 31, 2021, 2022, and 2023 of $254k, $647k, $540k, and $154k, respectively, are not included in the table above.