Note 7 - Leases - Operating Leases Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Operating lease right-of-use assets	$ 1,090	$ 1,379
Leased property under finance leases	15,439	14,433
Current portion of obligations under operating leases	373	362
Less accumulated amortization	(8,440)	(8,166)
Long-term portion of obligations under operating leases	717	1,017
Leased property under finace leases, net	6,999	6,267
Total obligations under operating leases	1,090	1,379
Current portion of obligations under finance leases	364	384
Long-term portion of obligations under finance leases	961	1,248
Total obligations under finance leases	$ 1,325	$ 1,632