Note 10 - Leases - Information Related to Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating cash outflows from operating leases	$ 208	$ 218
Operating Lease, Weighted Average Remaining Lease Term (Year)	8 years 6 months	1 year 3 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	9.50%	6.00%
Proceeds from sale and leaseback arrangement	$ 11,082	$ 0
Finance Lease, Weighted Average Remaining Lease Term (Year)	3 years
Finance Lease, Weighted Average Discount Rate, Percent	8.50%
Operating Lease, Liability, Total	$ 712	230
Finance lease assets	12,346	0
Current finance lease liabilities	3,933	0
Non-current finance lease liabilities	8,157	0
Total finance lease liabilities	12,090
Buildings and Equipment [Member]
Operating Lease, Right-of-Use Asset	712	230
Accounts Payable and Accrued Liabilities [Member]
Current operating lease liabilities	58	173
Other Noncurrent Liabilities [Member]
Non-current operating lease liabilities	654	57
Financing Lease Right-of-Use Assets [Member]
Finance lease assets	12,346	0
Current Portion of Lease Financing [Member]
Current finance lease liabilities	3,933	0
Long-term Lease Financing [Member]
Non-current finance lease liabilities	8,157	0
Accounts Payable and Accrued Liabilities and Other Noncurrent Liabilities [Member]
Total finance lease liabilities	$ 12,090	$ 0