Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Net operating loss carryforwards	$ 74,807	$ 71,967
Intangible assets	0	453
Accrual and reserves	3,531	2,946
Leases	3,834	4,428
Other	4	8
Total noncurrent deferred tax assets	82,176	79,802
Valuation allowance	(74,559)	(72,010)
Noncurrent deferred tax assets, net of valuation allowance	7,617	7,792
Fixed assets	2,584	2,834
Intangible assets	674	0
Leases	4,344	4,956
Total noncurrent deferred tax liabilities	7,602	7,790
Net deferred income tax asset	$ 15	$ 2