Note H - Lease Obligations - Future Minimum Rental Commitments Under Noncancellable Leases (Details) $ in Thousands	Jun. 30, 2021 USD ($)
2022, Operating Leases	$ 2,898
2022, Finance Leases	805
2023, Operating Leases	2,600
2023, Finance Leases	796
2024, Operating Leases	2,256
2024, Finance Leases	752
2025, Operating Leases	1,663
2025, Finance Leases	507
2026, Operating Leases	1,575
2026, Finance Leases	434
Thereafter, Operating Leases	9,989
Thereafter, Finance Leases	3,879
Total future lease payments, Operating Leases	20,981
Total future lease payments, Finance Leases	7,173
Less: Amount representing interest, Operating Leases	(6,224)
Less: Amount representing interest, Finance Leases	(1,796)
Present value of future payments, Operating Leases	14,757
Present value of future payments, Finance Leases	$ 5,377