Income Taxes - Tax provision (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Loss before provision for income taxes	$ (52,600,000)	$ (33,809,000)
Foreign loss	(4,600,000)	0
Deferred:
Total deferred	0	0
Total provision for income taxes	$ 0	$ 0
Effective tax rate, differed from the federal statutory rate
Statutory rate	(21.00%)	(21.00%)
Intercompany transactions	15.50%
Valuation allowance	3.00%	13.40%
Nondeductible warrant expense	0.70%
Book loss on debt extinguishment	0.30%	4.20%
Foreign rate differential	(0.30%)
Other	1.80%	3.40%
Effective tax rate	0.00%	0.00%
Non-current deferred tax assets:
Net operating losses	$ 21,153,000	$ 19,863,000
Tax credits	241,000	241,000
Stock compensation	2,161,000	1,711,000
Other	450,000	156,000
Gross non-current deferred tax assets	24,005,000	21,971,000
Valuation allowance	(19,865,000)	(18,437,000)
Net non-current deferred tax assets	4,140,000	3,534,000
Non-current deferred tax liabilities:
Other	(678,000)
Property and equipment	(3,462,000)	(3,534,000)
Net non-current deferred tax liability	(4,140,000)	(3,534,000)
Increase in valuation allowance	1,400,000
Domestic Tax Authority [Member]
Loss before provision for income taxes	$ (48,000,000.0)	$ (33,800,000)