Foreign Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	$ 2,016	$ 2,435	$ 7,177	$ 7,660
Operating (loss) income by geographic area	(9,082)	(5,463)	(23,921)	(20,548)
Net (loss) income from continuing operations by geographic area	(10,848)	(10,872)	(30,499)	(27,094)
Identifiable assets by geographic area	27,647		27,647		$ 57,635
Long lived assets by geographic area	4,681		4,681		5,854
Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	(484)	(106)	(1,522)	(338)
Operating (loss) income by geographic area	0	(22)	0	(23)
Net (loss) income from continuing operations by geographic area	0	0	1	0
Identifiable assets by geographic area	(44,378)		(44,378)		(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	1,304	1,495	4,559	4,465
Operating (loss) income by geographic area	(7,511)	(3,223)	(20,267)	(13,878)
Net (loss) income from continuing operations by geographic area	(9,346)	(8,642)	(27,031)	(20,531)
Identifiable assets by geographic area	51,204		51,204		133,382
Long lived assets by geographic area	2,141		2,141		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	367	78	1,160	345
Operating (loss) income by geographic area	41	30	161	114
Net (loss) income from continuing operations by geographic area	41	(31)	165	53
Identifiable assets by geographic area	755		755		682
Long lived assets by geographic area	61		61		3
Germany | Reportable Geographical Components
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	725	880	2,643	2,851
Operating (loss) income by geographic area	(1,343)	(1,974)	(3,266)	(6,082)
Net (loss) income from continuing operations by geographic area	(1,274)	(1,926)	(3,085)	(5,938)
Identifiable assets by geographic area	19,580		19,580		19,599
Long lived assets by geographic area	2,476		2,476		3,308
United Kingdom | Reportable Geographical Components
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area	98	88	327	331
Operating (loss) income by geographic area	(6)	19	(11)	78
Net (loss) income from continuing operations by geographic area	(6)	19	(11)	78
Identifiable assets by geographic area	406		406		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	6	0	10	6
Operating (loss) income by geographic area	(263)	(292)	(538)	(756)
Net (loss) income from continuing operations by geographic area	(263)	(292)	(538)	(756)
Identifiable assets by geographic area	80		80		19
Long lived assets by geographic area	3		3		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	(1)	0	(1)
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