Note 10 - Leases and Purchase Commitments (Details Textual) - USD ($)	Jun. 30, 2020	Jul. 01, 2019	Jun. 30, 2019
Contractual Obligation, Total	$ 14,300,000		$ 19,700,000
Operating Lease, Right-of-Use Asset	8,663,000
Operating Lease, Liability, Total	$ 9,397,000
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset		$ 10,400,000
Operating Lease, Liability, Total		$ 10,800,000
Minimum [Member]
Operating Lease, Weighted Average Remaining Lease Term (Year)	1 year
Maximum [Member]
Operating Lease, Weighted Average Remaining Lease Term (Year)	5 years