Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Statement of Cash Flows [Abstract]
Net cash flows used in operating activities	$ (7,614)	$ (780)
Cash flows used in investing activities:
Purchases of property, plant and equipment	(3,661)	(5,510)
Proceeds from government grants, used for purchase of equipment	323	808
Proceeds from sale of property, plant and equipment		10
Purchases of long-term marketable securities	(10)	(210)
Proceeds from sale of long-term marketable securities	334	532
Net cash flows used in investing activities	(3,014)	(4,370)
Cash flows provided by financing activities:
Proceeds from Equipment Term Notes	13,500
Proceeds from revolving credit facility	18,332	16,172
Payments on revolving credit facility	(25,144)	(10,276)
Repayment of debt principal	(1,475)	(1,002)
Proceeds from equipment financing facility		1,692
Repayments of related party debt		(664)
Payment of debt issuance costs	(840)
Proceeds from shareholder exercise of warrants	1
Net cash flows provided by financing activities	4,374	5,922
Effect of exchange rate changes on cash and cash equivalents	772	(166)
Net (decrease) increase in cash and cash equivalents	(5,482)	606
Cash and cash equivalents at beginning of period	15,427	7,286
Cash and cash equivalents at end of period	9,945	7,892
Supplemental information:
Income tax payments (net of refunds)	760	1,610
Interest payments (net of amounts capitalized)	4,508	5,024
Non-cash investing and financing activities:
Purchases of property, plant and equipment in accounts payable	1,389	1,306
Finance lease right-of-use assets exchanged for lease liabilities	23	146
Operating lease right-of-use assets exchanged for lease liabilities	$ 633	$ 283