Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Cash Flows [Abstract]
Net cash flows from (used in) operating activities	$ 4,535	$ (4,391)
Cash flows used in investing activities:
Purchases of property, plant and equipment	(2,837)	(3,636)
Proceeds from sale of property, plant and equipment		128
Purchases of long-term marketable securities	(12)	(13)
Proceeds from sale of long-term marketable securities	4	164
Net cash flows used in investing activities	(2,845)	(3,357)
Cash flows from financing activities:
Proceeds from revolving credit facility	6,621	8,535
Payments on revolving credit facility	(4,666)	(6,073)
Payments on sale and leaseback financing arrangements	(86)	(90)
Proceeds from equipment financing facility	1,134	2,498
Proceeds from related party debt		229
Repayments of related party debt	(664)
Repayments of debt	(311)	(101)
Net cash flows provided by financing activities	2,028	4,998
Effect of exchange rate changes on cash and cash equivalents	(175)	89
Net increase (decrease) in cash and cash equivalents	3,543	(2,661)
Cash and cash equivalents at beginning of period	7,286	8,735
Cash and cash equivalents at end of period	10,829	6,074
Supplemental information:
Income tax payments, net of refunds	569	342
Interest payments	2,347	1,716
Non-cash investing and financing activities:
Purchases of property, plant and equipment in current liabilities	333	$ 844
Finance lease right-of-use assets exchanged for lease liabilities	81
Operating lease right-of-use assets exchanged for lease liabilities	$ 28