Debt, Net - Components of debt (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt, net, current:
Less, debt issuance costs	$ 0	$ (672)
Total	2,326	16,666
Debt, net, non-current:
Less, debt issuance costs	(2,333)	(2,115)
Total	139,897	143,638
Unamortized discount	11,608
Note payable
Debt, net, current:
Debt, gross, current	126	115
Debt, net, non-current:
Debt, gross, noncurrent	270	345
Sprott Credit Agreement
Debt, net, current:
Debt, gross, current	2,200	17,223
Debt, net, non-current:
Debt, gross, noncurrent	43,595	51,809
Unamortized discount	11,600	11,600
Subordinated Notes
Debt, net, non-current:
Debt, gross, noncurrent	$ 98,365	$ 93,599