Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net earnings	$ 14,572	$ 5,064
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	3,236	4,301
Stock-based compensation	902	576
Amortization of deferred financing costs	33	34
Deferred tax benefit	(1,137)	(451)
Net unrealized losses (gains) on foreign currency revaluation	199	(289)
Other, net	465	131
Changes in operating assets and liabilities:
Accounts receivable, net	(1,316)	(6,694)
Unbilled receivables	3,175	7,719
Inventories	7,652	(16,344)
Accounts payable	(4,831)	(1,194)
Accrued expenses	(6,417)	(3,564)
Accrued restructuring costs	2,590	0
Income taxes payable	3,931	473
Other operating assets/liabilities, net	(6,219)	2,490
Net cash provided by (used in) operating activities	16,835	(7,748)
Cash flows from investing activities:
Purchases of property, plant and equipment	(3,761)	(2,040)
Payments for equity method investment	(9,975)	0
Proceeds from sale of property, plant and equipment	25	87
Net cash used in investing activities	(13,711)	(1,953)
Cash flows from financing activities:
Dividends paid to common stockholders	(829)	(823)
Borrowings under revolving credit line	5,000	0
Net cash provided by (used in) financing activities	4,171	(823)
Effect of exchange rate changes on cash and cash equivalents	279	3
Net increase (decrease) in cash and cash equivalents	7,574	(10,521)
Cash and cash equivalents - beginning of period	70,266	61,756
Cash and cash equivalents - end of period	77,840	51,235
Supplementary information:
Income taxes, net of refunds received	976	1,152
Interest payments	1,415	461
ROU assets obtained in exchange for lease obligations	$ 380	$ 3,340