Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 1,551	$ 600	$ 793	$ 4,512
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,978	3,368	6,182	6,620
Inventory write-downs			1,042	888
Credit loss expense			2,100	(383)	$ 232
Share-based compensation expense			2,561	1,620
Change in fair value of acquisition-related contingent liabilities			520	296
Other, net			182	775
Changes in assets and liabilities, net of acquisition of a business:
Accounts receivable			(569)	10,578
Contract assets			(1,682)	(4,526)
Inventories			(10,692)	3,936
Prepaid expenses and other current assets			1,267	(1,309)
Other assets			(789)	(761)
Accounts payable and other current liabilities			1,740	(6,424)
Other long-term liabilities			291	478
Net cash provided by operating activities			2,946	16,300
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property, plant and equipment			(2,716)	(1,974)
Net cash used in investing activities			(2,716)	(1,974)
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowings under revolving lines of credit			57,000	10,000
Payments under revolving lines of credit			(41,000)	(24,000)
Payments of term loan			(2,812)	(1,875)
Payment of cash dividends			(4,515)	(4,657)
Payment of acquisition-related contingent liabilities			0	(557)
Proceeds received on exercise of stock options and payments for shares withheld for taxes			189	1,076
Common shares repurchased and retired			(7,926)	0
Net cash provided by (used in) financing activities			936	(20,013)
Effect of currency exchange rates on cash			1,094	(835)
Net increase in cash and cash equivalents			2,260	(6,522)
Cash and cash equivalents balance, beginning of period			18,766	19,896	19,896
Cash and cash equivalents balance, end of period	$ 21,026	$ 13,374	$ 21,026	$ 13,374	$ 18,766