Debt, Net - Components of debt (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt, net, current:
Less, debt issuance costs, current	$ 0	$ (672)
Total	2,326	16,666
Debt, net, non-current:
Debt, gross, noncurrent	43,585	51,809
Less, debt issuance costs, noncurrent	(2,449)	(2,115)
Total	137,377	143,638
Unamortized discount	12,168
Notes payable
Debt, net, current:
Debt, gross, current	126	115
Debt, net, non-current:
Debt, gross, noncurrent	301	345
Sprott Credit Agreement
Debt, net, current:
Debt, gross, current	2,200	17,223
Debt, net, non-current:
Unamortized discount	12,200	12,200
Subordinated Notes
Debt, net, non-current:
Debt, gross, noncurrent	$ 95,940	$ 93,599

Long-term Debt, Gross, Current Maturities

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Long-term Debt, Gross, Excluding Current Maturities

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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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