Summarized Financial Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Operating Income (Loss)	$ (9,004)	$ (117,457)	$ (17,593)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(13,225)	(100,592)	(46,741)
Current assets	196,282	215,218
Current liabilities	74,017	103,231
Wuxi Weifu Autocam Precision Machinery Company, Ltd.
Schedule of Equity Method Investments [Line Items]
Revenues	94,846	68,216	58,906
Cost of Revenue	77,620	56,669	52,757
Operating Income (Loss)	15,429	10,202	4,745
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	12,777	7,401	$ 3,432
Current assets	65,465	50,794
Noncurrent assets	75,222	64,635
Current liabilities	67,206	47,905
Noncurrent liabilities	$ 10,006	$ 10,279