CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities:
Net income (loss)	$ (9,186)	$ (16,842)
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation and amortization	7,622	9,143
Provision for credit losses	19	0
Deferred income taxes	641	112
Shares issued for employee benefit plan	331	663
Employee and director stock-based compensation	3,433	3,364
Impairment of long-lived assets	110	148
Changes in operating assets and liabilities:
Accounts receivable and contract assets	23,348	13,095
Inventories	1,715	(914)
Prepaid expenses and other assets	3,728	(1,621)
Accounts payable and accrued liabilities	(15,395)	(5,478)
Accrued income taxes	1,339	1,005
Net cash provided by (used for) operating activities	17,705	2,675
Cash flows from investing activities:
Purchase of Blue Chip Swap securities (Note 15)	(2,544)	0
Sale of Blue Chip Swap securities (Note 15)	2,314	0
Acquisitions of property, plant and equipment	(2,261)	(2,696)
Acquisitions of intangible assets	(1,498)	(2,308)
Net cash provided by (used for) investing activities	(3,989)	(5,004)
Cash flows from financing activities:
Borrowings under lines of credit	41,000	35,000
Repayments on lines of credit	(48,000)	(49,000)
Treasury stock purchased	(748)	(1,841)
Net cash provided by (used for) financing activities	(7,748)	(15,841)
Effect of foreign currency exchange rates on cash and cash equivalents	1,510	(1,453)
Net increase (decrease) in cash and cash equivalents	7,478	(19,623)
Cash and cash equivalents at beginning of period	26,783	42,751
Cash and cash equivalents at end of period	34,261	23,128
Supplemental cash flow information:
Income taxes paid	2,096	2,175
Interest paid	$ 1,238	$ 2,545