Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Cash Flows [Abstract]
Net cash flows (used in) provided by operating activities	$ (5,280)	$ 4,535
Cash flows used in investing activities:
Purchases of property, plant and equipment	(2,200)	(2,837)
Proceeds from government grants, used for purchase of equipment	323
Purchases of long-term marketable securities	(2)	(12)
Proceeds from sale of long-term marketable securities	168	4
Net cash flows used in investing activities	(1,711)	(2,845)
Cash flows (used in) provided by financing activities:
Proceeds from revolving credit facility	4,666	6,621
Payments on revolving credit facility	(5,666)	(4,666)
Payments on sale-leaseback financing arrangements	(111)	(86)
Proceeds from equipment financing facility		1,134
Payments on equipment financing facility	(520)	(198)
Repayments of related party debt		(664)
Repayments of debt	(96)	(113)
Net cash flows (used in) provided by financing activities	(1,727)	2,028
Effect of exchange rate changes on cash and cash equivalents	420	(175)
Net (decrease) increase in cash and cash equivalents	(8,298)	3,543
Cash and cash equivalents at beginning of period	15,427	7,286
Cash and cash equivalents at end of period	7,129	10,829
Supplemental information:
Income tax payments (net of refunds)	487	569
Interest payments (net of amounts capitalized)	2,331	2,347
Non-cash investing and financing activities:
Purchases of property, plant and equipment in accounts payable	310	333
Finance lease right-of-use assets exchanged for lease liabilities	23	81
Operating lease right-of-use assets exchanged for lease liabilities	$ 633	$ 28