Note 4 - Leases - Maturities of Lease Liabilities (Details) $ in Thousands	Sep. 30, 2021 USD ($)
2022, operating leases	$ 1,300
2022, financing leases	22
2023, operating leases	1,311
2023, financing leases	22
2024, operating leases	1,249
2024, financing leases	49
2025, operating leases	1,244
2025, financing leases	0
2026, operating leases	1,209
2026, financing leases	0
2027 and thereafter, operating leases	3,197
2027 and thereafter, financing leases	0
Total operating lease payments	9,510
Total financing lease payments	93
Less imputed interest, operating leases	(1,055)
Less imputed interest, financing leases	(7)
Present value, operating leases	8,455
Present value, financing leases	$ 86