Note D - Operating Leases - Maturities of Lease Liabilities (Details) $ in Thousands	Dec. 31, 2019 USD ($)
2020, operating leases	$ 1,234
2020, financing leases	22
2021, operating leases	1,159
2021, financing leases	22
2022, operating leases	1,098
2022, financing leases	22
2023, operating leases	1,091
2023, financing leases	65
2024, operating leases	1,090
2024, financing leases	0
2025 and thereafter, operating leases	5,040
2025 and thereafter, financing leases	0
Total operating lease payments	10,712
Total financing lease payments	131
Less imputed interest, operating leases	(1,764)
Less imputed interest, financing leases	(14)
Present value, operating leases	8,948
Present value, financing leases	$ 117