Note 15 - Leases - Operating Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Jun. 30, 2020
Operating lease cost	$ 576	$ 574	$ 1,714	$ 1,736
Amortization of right of use assets	73	0	218	0
Interest on lease liabilities	22	0	69	0
Variable lease cost	0	0	2	0
Total lease cost	671	$ 574	2,003	1,736
Fixed payments - operating cash flows			1,707	1,707
Liability reduction - operating cash flows			1,397	1,334
Interest - operating cash flows			69	0
Repayments of principal portion - financing cash flows			178	$ (0)
Total operating right-of-use assets	7,673		7,673		$ 8,663
Long-term operating lease liability	8,105		8,105		9,021
Total operating lease liabilities	$ 8,409		$ 8,409		$ 9,397
Weighted Average remaining Lease Term (in years) (Year)	3 years 11 months 26 days		3 years 11 months 26 days		4 years 7 months 2 days
Weighted Average Discount Rate	4.86%		4.86%		4.85%
Buildings under finance leases	$ 2,033		$ 2,033		$ 2,033
Accumulated depreciation	(266)		(266)		(48)
Total finance lease assets, net	1,767		1,767		1,985
Accrued expenses (Current liabilities)	248		248		239
Long-term finance lease liability	1,568		1,568		1,755
Total finance lease liabilities	$ 1,816		$ 1,816		$ 1,994
Weighted Average remaining Lease Term (in years) (Year)	6 years 29 days		6 years 29 days		6 years 9 months 29 days
Weighted Average Discount Rate	4.86%		4.86%		4.86%
Accrued Expenses [Member]
Operating lease liabilities	$ 304		$ 304		$ 376