Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue	$ 84,133	$ 82,837
Cost of revenue	31,214	43,603
Gross profit	52,919	39,234
Operating expenses:
Research and development	18,279	12,923
Sales and marketing	9,895	4,525
General and administrative	43,774	36,709
Restructuring, severance and related costs	8,952	0
Total operating expenses	80,900	54,157
Operating loss	(27,981)	(14,923)
Other expense, net	(1,013)	(1,213)
Interest expense, net	(7,997)	(7,219)
Loss before income taxes	(36,991)	(23,355)
Income tax (expense) benefit	(153)	645
Net loss	(37,144)	(22,710)
Dividends on preferred stock - declared and undeclared	(8,954)	(1,987)
Net loss attributable to common stockholders	(46,098)	(24,697)
Net loss attributable to common stockholders	$ (46,098)	$ (24,697)
Net loss per common share, basic (in dollars per share)	$ (2.47)	$ (1.44)
Net loss per common share, diluted (in dollars per share)	$ (2.47)	$ (1.44)
Weighted-average common shares outstanding, basic (in shares)	18,656	17,112
Weighted-average common shares outstanding, diluted (in shares)	18,656	17,112