Note J - Lease Obligations - Future Minimum Rental Commitments Under Noncancellable Leases (Details) - USD ($)	Jun. 30, 2019	Jun. 30, 2018
2020, Operating Leases	$ 3,186,000
2020, Finance Leases	136,000
2021, Operating Leases	2,489,000
2021, Finance Leases	136,000
2022, Operating Leases	1,950,000
2022, Finance Leases	136,000
2023, Operating Leases	1,722,000
2023, Finance Leases	132,000
2024, Operating Leases	1,532,000
2024, Finance Leases	112,000
Thereafter, Operating Leases	11,112,000
Thereafter, Finance Leases
Total future lease payments, Operating Leases	21,991,000
Total future lease payments, Finance Leases	652,000
Less: Amount representing interest, Operating Leases	(7,861,000)
Less: Amount representing interest, Finance Leases	(99,000)
Operating Lease, Liability, Total	14,130,000	$ 6,527,000
Finance Lease, Liability, Total	$ 553,000	$ 0