Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net earnings	$ 24,821	$ 12,795
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	16,861	16,423
Stock-based compensation	2,300	2,318
Amortization of deferred financing costs	1,302	654
Deferred income taxes	441	(1,743)
Unrealized losses on foreign currency revaluation	44	2,168
Gain on sale of property, plant and equipment	(6,440)	(1,694)
Other, net	1,276	1,259
Changes in operating assets and liabilities, net of effects of business combination:
Accounts receivable	(12,982)	5,397
Unbilled receivables	(14,140)	2,183
Inventories	(34,005)	9,690
Other current assets	(2,240)	4,468
Other assets	(1,182)	(1,587)
Accounts payable	23,961	(6,044)
Accrued expenses	4,684	1,021
Other liabilities	1,441	(1,460)
Income taxes payable	(1,510)	260
Net cash provided by operating activities	4,632	46,108
Cash flows from investing activities:
Purchases of property, plant and equipment	(9,397)	(5,476)
Payments for acquisitions, net of cash acquired	(16,811)	0
Proceeds from disposal/sale of property, plant and equipment	7,330	3,961
Net cash used in investing activities	(18,878)	(1,515)
Cash flows from financing activities:
Dividends paid to common shareholders	(3,379)	(3,363)
Deferred financing costs	(675)	(600)
Borrowings under revolving credit line	115,000	0
Repayments under revolving credit line	(14,500)	(20,000)
Repayments of long-term debt	(104,846)	(8,179)
Net cash used in financing activities	(8,400)	(32,142)
Effect of exchange rate changes on cash	(537)	199
Net (decrease) increase in cash and cash equivalents	(23,183)	12,650
Cash and cash equivalents - beginning of year	84,939	72,289
Cash and cash equivalents - end of year	61,756	84,939
Supplemental cash flow information:
Income taxes, net of refunds received	2,872	2,649
Interest payments	2,140	4,131
Goodwill	26,651	23,966
Less: Cash acquired in acquisitions	(3,903)
Cash paid for acquisitions, net of cash acquired	16,811	(0)
BCMZ Precision Engineering Limited [Member]
Supplemental cash flow information:
Fair value of identifiable net assets acquired	18,215	0
Goodwill	2,499	0
Fair value of net assets acquired	20,714	0
Fair value of consideration transferred	$ 20,714	$ 0