Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Amortization of Debt Issuance Costs		$ 286	$ 11,302
Net Cash Provided by (Used in) Operating Activities, Total		8,706	11,478
Net Cash Provided by (Used in) Financing Activities, Total		$ (634)	$ 27,983
Revision of Prior Period, Adjustment [Member] | Correction to Debt Issuance Costs From Income to Cash Flow Statements [Member]
Amortization of Debt Issuance Costs	$ 8,475,000
Revision of Prior Period, Adjustment [Member] | Aggregate Change From Reclassifications [Member]
Net Cash Provided by (Used in) Operating Activities, Total				$ 8,475,000
Net Cash Provided by (Used in) Financing Activities, Total				$ (8,475,000)