Note 4 - Leases - Maturities of Lease Liabilities (Details) $ in Thousands	Sep. 30, 2020 USD ($)
2021, operating leases	$ 1,297
2021, financing leases	22
2022, operating leases	1,305
2022, financing leases	22
2023, operating leases	1,225
2023, financing leases	22
2024, operating leases	1,162
2024, financing leases	49
2025, operating leases	1,180
2025, financing leases	0
2025 and thereafter, operating leases	4,352
2025 and thereafter, financing leases	0
Total operating lease payments	10,521
Total financing lease payments	115
Less imputed interest, operating leases	(1,531)
Less imputed interest, financing leases	(12)
Present value, operating leases	8,990
Present value, financing leases	$ 103