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 income	$ 2,469	$ 2,810
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	2,885	2,288
Unrealized foreign currency (gain) loss	(92)	263
Gain on sale of property and equipment	(17)	(7)
Debt discount amortization	91	93
Share-based compensation expense	806	877
Bad debt expense	83	45
Inventory reserve expense	175	213
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(22,786)	(18,964)
Costs and estimated earnings in excess of billings on uncompleted contracts	(8,418)	1,515
Inventories	(2,191)	(3,316)
Prepaid expense and other current assets	572	(878)
Deferred charges and other assets	(325)	996
Accounts payable and accrued expenses	(1,056)	7,452
Billings in excess of costs and estimated earnings on uncompleted contracts	16,838	7,615
Income taxes payable	(17)	137
Other liabilities	(1,038)	(1,341)
Net cash used in operating activities	(12,021)	(202)
Cash flows from investing activities:
Acquisitions of property and equipment	(2,513)	(665)
Net proceeds from sale of assets	0	7
Net cash paid for acquisition	(24,142)	(19,583)
Net cash used in investing activities	(26,655)	(20,241)
Cash flows from financing activities:
Borrowings on revolving credit lines	54,800	17,800
Repayments on revolving credit lines	(20,000)	(7,200)
Borrowing on long-term debt	0	11,000
Repayments of long-term debt	(826)	(643)
Deferred financing fees paid	0	(130)
Payments on finance leases and financing liability	(225)	(145)
Proceeds from employee stock purchase plan and exercise of stock options	610	77
Noncontrolling interest distributions	0	(900)
Net cash provided by financing activities	34,359	19,859
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(64)	(1,111)
Net decrease in cash, cash equivalents and restricted cash	(4,381)	(1,695)
Cash, cash equivalents and restricted cash at beginning of period	46,585	31,995
Cash, cash equivalents and restricted cash at end of period	42,204	30,300
Cash paid during the period for:
Interest	2,338	812
Income taxes	$ 1,290	$ 390