Foreign Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	$ 2,057	$ 2,576	$ 5,161	$ 5,225
Operating (loss) income by geographic area	(6,657)	(9,373)	(14,839)	(18,611)
Net (loss) income from continuing operations by geographic area	(7,329)	(8,965)	(19,651)	(19,748)
Identifiable assets by geographic area	30,445		30,445		$ 57,635
Long lived assets by geographic area	5,129		5,129		5,854
Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	(483)	(142)	(1,038)	(232)
Operating (loss) income by geographic area	0	1	0	(1)
Net (loss) income from continuing operations by geographic area	0	(10)	1	0
Identifiable assets by geographic area	(42,565)		(42,565)		(102,223)
Long lived assets by geographic area	0		0		0
United States | Reportable Geographical Components
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	1,340	1,427	3,255	2,970
Operating (loss) income by geographic area	(5,394)	(6,512)	(12,756)	(14,181)
Net (loss) income from continuing operations by geographic area	(6,152)	(6,144)	(17,685)	(15,415)
Identifiable assets by geographic area	51,794		51,794		133,382
Long lived assets by geographic area	2,294		2,294		2,538
Canada | Reportable Geographical Components
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	0	0	0	0
Operating (loss) income by geographic area	0	0	0	0
Net (loss) income from continuing operations by geographic area	0	0	0	0
Identifiable assets by geographic area	0		0		5,484
Long lived assets by geographic area	0		0		0
India | Reportable Geographical Components
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	294	141	793	267
Operating (loss) income by geographic area	16	45	120	84
Net (loss) income from continuing operations by geographic area	19	45	124	84
Identifiable assets by geographic area	712		712		682
Long lived assets by geographic area	23		23		3
Germany | Reportable Geographical Components
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	763	1,023	1,918	1,971
Operating (loss) income by geographic area	(1,092)	(2,690)	(1,923)	(4,108)
Net (loss) income from continuing operations by geographic area	(1,009)	(2,639)	(1,811)	(4,012)
Identifiable assets by geographic area	20,056		20,056		19,599
Long lived assets by geographic area	2,810		2,810		3,308
United Kingdom | Reportable Geographical Components
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	139	125	229	243
Operating (loss) income by geographic area	(1)	46	(5)	59
Net (loss) income from continuing operations by geographic area	(1)	46	(5)	59
Identifiable assets by geographic area	362		362		277
Long lived assets by geographic area	0		0		1
Ireland | Reportable Geographical Components
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	4	2	4	6
Operating (loss) income by geographic area	(186)	(263)	(275)	(464)
Net (loss) income from continuing operations by geographic area	(186)	(263)	(275)	(464)
Identifiable assets by geographic area	86		86		19
Long lived assets by geographic area	2		2		4
Philippines | Reportable Geographical Components
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	0	0	0	0
Operating (loss) income by geographic area	0	0	0	0
Net (loss) income from continuing operations by geographic area	0	$ 0	0	$ 0
Identifiable assets by geographic area	0		0		415
Long lived assets by geographic area	$ 0		$ 0		$ 0