Note 10 - Debt (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Debt [Table Text Block]

	December 31, 2021			Maturity Date
Total debt, inclusive of $2.0 million exit payment	$	102,000		July 23, 2026
Less: deferred issuance costs and discounts		(4,908	)
Total long-term debt, net	$	97,092

Schedule of Maturities of Long-term Debt [Table Text Block]

	Amount
2022	$	—
2023		—
2024		33,997
2025		45,329
2026		22,674
Total	$	102,000

Schedule of Deferred Financing Costs [Table Text Block]

	December 31, 2021			December 31, 2020
Debt issuance costs and discounts (Oxford Credit Facility)	$	-		$	8,668
Debt issuance costs and discounts (Athyrium Notes)		5,410			-
Less: accumulated amortization		(502	)		(3,666	)
Included in long-term debt	$	4,908		$	5,002