Note 4 - Leases, Right-to-use Assets and Related Liabilities - Future Minimum Payments Under Non-cancelable Operating Leases (Details) $ in Thousands	Mar. 31, 2021 USD ($)
2021 (remaining), operating lease	$ 103
2021 (remaining), financing leases	25
2022, operating lease	24
2022, financing leases	26
2023, operating lease	297
2023, financing leases	26
2024, operating lease	305
2024, financing leases	26
2025, operating lease	1,042
2025, financing leases	22
2026 and thereafter, operating lease	1,030
2026 and thereafter, financing leases	301
Total, operating lease	2,801
Total, financing leases	426
Less: Amounts representing present value discounts, operating lease	(1,138)
Less: Amounts representing present value discounts, financing leases	(263)
Total lease liabilities, operating lease	1,663
Total lease liabilities, financing leases	$ 163

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

No definition available.