Unaudited Consolidated Statement of Convertible Preferred Stock and Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Previously Reported	Adjustment	Convertible Preferred Stock	Convertible Preferred Stock Previously Reported	Convertible Preferred Stock Adjustment	Common Stock	Common Stock Previously Reported	Common Stock Adjustment	Additional paid-in capital	Additional paid-in capital Previously Reported	Additional paid-in capital Adjustment	Retained earnings	Retained earnings Previously Reported	Accumulated other comprehensive income/(loss)	Accumulated other comprehensive income/(loss) Previously Reported
Beginning balance (in shares) at Dec. 31, 2019				1,048	622	426	21,644	12,847	8,797
Beginning balance at Dec. 31, 2019	$ 54,044	$ 54,044	$ 0	$ 9,187	$ 9,187		$ 2	$ 8,117	$ (8,115)	$ 18,650	$ 10,535	$ 8,115	$ 35,392	$ 35,392	$ 0	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(4,596)												(4,596)
Stock-based compensation	4,804									4,804
Conversion of convertible units (in shares)							53
Conversion of convertible units	530									530
Conversion of preferred stock (in shares)				(1,048)			1,048
Conversion of preferred stock	9,188			$ (9,187)			$ 1			9,187
Consideration paid to Grid shareholders	(123,865)									(123,865)
ChaSerg shares recapitalized, net of transaction costs of $4,142 (in shares)							28,088
ChaSerg shares recapitalized, net of transaction costs of $4,142	204,325						$ 2			204,323
Ending balance (in shares) at Mar. 31, 2020				0			50,833
Ending balance at Mar. 31, 2020	144,430			$ 0			$ 5			113,629			30,796		0
Beginning balance (in shares) at Dec. 31, 2019				1,048	622	426	21,644	12,847	8,797
Beginning balance at Dec. 31, 2019	54,044	$ 54,044	$ 0	$ 9,187	$ 9,187		$ 2	$ 8,117	$ (8,115)	18,650	$ 10,535	$ 8,115	35,392	$ 35,392	0	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(7,879)
Foreign currency translation adjustments, net of tax	0
Ending balance (in shares) at Sep. 30, 2020				0			50,860
Ending balance at Sep. 30, 2020	150,005			$ 0			$ 5			122,487			27,513		0
Beginning balance (in shares) at Mar. 31, 2020				0			50,833
Beginning balance at Mar. 31, 2020	144,430			$ 0			$ 5			113,629			30,796		0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(2,166)												(2,166)
Stock-based compensation	3,654									3,654
Exercise of stock options (in shares)							6
Exercise of stock options	59									59
Ending balance (in shares) at Jun. 30, 2020				0			50,839
Ending balance at Jun. 30, 2020	145,977			$ 0			$ 5			117,342			28,630		0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(1,117)												(1,117)
Stock-based compensation	5,126									5,126
Exercise of stock options (in shares)							6
Exercise of stock options	19									19
Foreign currency translation adjustments, net of tax	0
Issuance of shares in connection with vested RSUs (in shares)							15
Ending balance (in shares) at Sep. 30, 2020				0			50,860
Ending balance at Sep. 30, 2020	150,005			$ 0			$ 5			122,487			27,513		0
Beginning balance (in shares) at Dec. 31, 2020				0			50,879
Beginning balance at Dec. 31, 2020	151,724			$ 0			$ 5			128,930			22,793		(4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(2,062)												(2,062)
Stock-based compensation	5,671									5,671
Conversion of convertible units (in shares)							2,221
Exercise of stock options (in shares)							41
Exercise of stock options	162									162
Issuance of shares and payments of tax obligations resulted from net share settlement of vested stock awards (in shares)							1,030
Issuance of shares and payments of tax obligations resulted from net share settlement of vested stock awards	(15,297)									(15,297)
Foreign currency translation adjustments, net of tax	49														49
Ending balance (in shares) at Mar. 31, 2021				0			54,171
Ending balance at Mar. 31, 2021	140,247			$ 0			$ 5			119,466			20,731		45
Beginning balance (in shares) at Dec. 31, 2020				0			50,879
Beginning balance at Dec. 31, 2020	151,724			$ 0			$ 5			128,930			22,793		(4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(4,094)
Foreign currency translation adjustments, net of tax	(72)
Ending balance (in shares) at Sep. 30, 2021				0			65,121
Ending balance at Sep. 30, 2021	275,566			$ 0			$ 7			256,936			18,699		(76)
Beginning balance (in shares) at Mar. 31, 2021				0			54,171
Beginning balance at Mar. 31, 2021	140,247			$ 0			$ 5			119,466			20,731		45
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(1,483)												(1,483)
Stock-based compensation	6,675									6,675
Conversion of convertible units (in shares)							271
Conversion of convertible units	918									918
Exercise of stock options (in shares)							138
Exercise of stock options	254									254
Issuance of shares and payments of tax obligations resulted from net share settlement of vested stock awards (in shares)							149
Issuance of shares and payments of tax obligations resulted from net share settlement of vested stock awards	(3,564)									(3,564)
Foreign currency translation adjustments, net of tax	(35)														(35)
Ending balance (in shares) at Jun. 30, 2021				0			54,729
Ending balance at Jun. 30, 2021	143,012			$ 0			$ 5			123,749			19,248		10
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(549)												(549)
Stock-based compensation	9,113									9,113
Conversion of convertible units (in shares)							4,188
Conversion of convertible units	48,206						$ 1			48,205
Exercise of stock options (in shares)							656
Exercise of stock options	203									203
Issuance of common stock in July 2021 offering, net of transaction costs of $498 (in shares)							5,470
Issuance of common stock in July 2021 offering, net of transaction costs of $498	77,813						$ 1			77,812
Issuance of shares and payments of tax obligations resulted from net share settlement of vested stock awards (in shares)							78
Issuance of shares and payments of tax obligations resulted from net share settlement of vested stock awards	(2,146)									(2,146)
Foreign currency translation adjustments, net of tax	(86)														(86)
Ending balance (in shares) at Sep. 30, 2021				0			65,121
Ending balance at Sep. 30, 2021	$ 275,566			$ 0			$ 7			$ 256,936			$ 18,699		$ (76)