Note 10 - Leases - Undiscounted Payments Under Non-cancelable Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
2024, finance leases	$ 23
2024, operating leases	678
2025, finance leases	11
2025, operating leases	589
2026, finance leases	10
2026, operating leases	471
2027, finance leases	0
2027, operating leases	231
2028, finance leases	0
2028, operating leases	184
Finance leases, thereafter	0
Operating leases, thereafter	383
Finance leases, total minimum lease payments	44
Operating leases, total minimum lease payments	2,536
Finance leases, less: Amount representing interest	3
Operating leases, less: Amount representing interest	305
Other Current Liabilities and Other Noncurrent Liabilities [Member]
Present value of minimum finance lease payments	41	$ 350
Present value of minimum operating lease payments	2,231	855
Other Current Liabilities [Member]
Current portion, finance leases	22	311
Current portion, operating leases	581	522
Other Noncurrent Liabilities [Member]
Finance leases obligations, net of current portion	19	39
Operating lease obligations, net of current portion	$ 1,650	$ 333