Note 9 - Debt - Summary of Debt Outstanding (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Long-term debt, gross		$ 187,204	$ 175,000
Debt discount and issuance costs		(5,190)	(5,964)
Less: Current portion of long-term debt		(2,441)	0
Total long-term debt		179,573	169,036
Secured Debt [Member]
Long-term debt, gross		0	0
Unsecured Debt [Member]
Long-term debt, gross		0	0
The 8.00% Senior Secured Notes due August 2022 [Member]
Long-term debt, gross	[1],[2]	175,000	175,000
Supplier Facility Agreements [Member]
Long-term debt, gross		$ 12,204	$ 0

[1] As of June 30, 2023 and December 31, 2022, the fair value (Level 2) of the Senior Secured Notes was $181.4 million and $177.3 million, respectively.

[2] The $1.2 million restricted cash on the condensed consolidated balance sheet at June 30, 2023, represents the pro rata amount due for our next semiannual interest payment obligation on the 8.50% Senior Secured Notes.