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Note 4 - Debt - Summary of Debt Outstanding (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Debt discount and issuance costs |  | $ (5,964) | $ (7,115)
Total long-term debt |  | 169,036 | 167,885
The 8.00% Senior Secured Notes due August 2022 [Member] |  |  |
Long-term debt, gross | [1],[2] | $ 175,000 | $ 175,000
[1] | As of September 30, 2022 and December 31, 2021, the fair value (Level 2) of the Senior Secured Notes was $173.4 million and $177.6 million, respectively.
[2] | The $5.0 million restricted cash on the condensed consolidated balance sheet at September 30, 2022, represents the pro rata amount due for our next semiannual interest payment obligation.

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