Note 17 - Income Taxes - Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Net operating loss carryforwards	$ 29,277	$ 15,406
Operating lease assets	(7,881)	(82)
Operating lease liabilities	8,086	88
Depreciation, deferred tax assets	3,840	3,427
Restricted stock	1,146	992
Business interest expense	1,165	1,441
Other temporary differences	886	321
Deferred tax assets	36,519	21,593
Valuation allowance	(36,519)	(21,593)
Net deferred tax assets	$ 0	$ 0