Note D - Leases (Details Textual) - USD ($) |
Jun. 30, 2020 |
Jul. 01, 2019 |
Jun. 30, 2019 |
|---|---|---|---|
| Operating Lease, Right-of-Use Asset | $ 18,354,000 | $ 20,774,000 | |
| Operating Lease, Weighted Average Remaining Lease Term (Year) | 7 years 73 days | ||
| Operating Lease, Weighted Average Discount Rate, Percent | 3.24% | ||
| Accounting Standards Update 2016-02 [Member] | |||
| Operating Lease, Right-of-Use Asset | 20,774,000 | ||
| Operating Lease, Liability, Total | $ 20,900,000 |