Note 4 - Leases - Maturities of Lease Liabilities (Details) $ in Thousands	Jun. 30, 2021 USD ($)
2022, operating leases	$ 1,285
2022, financing leases	22
2023, operating leases	1,308
2023, financing leases	22
2024, operating leases	1,274
2024, financing leases	54
2025, operating leases	1,235
2025, financing leases	0
2026, operating leases	1,233
2026, financing leases	0
2027 and thereafter, operating leases	3,486
2027 and thereafter, financing leases	0
Total operating lease payments	9,821
Total financing lease payments	98
Less imputed interest, operating leases	(1,129)
Less imputed interest, financing leases	(8)
Present value, operating leases	8,692
Present value, financing leases	$ 90