Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 4,707	$ 5,305
Adjustments to reconcile net income to net cash (used) provided by operating activities:
Depreciation	1,253	1,097
Amortization	874	693
Stock compensation expense	552	306
Changes in operating assets and liabilities:
Accounts receivable	(10,866)	(5,145)
Inventories	1,382	(2,134)
Prepaid expenses and other assets	(147)	219
Accounts payable	1,079	21
Other accrued liabilities	(30)	1,223
Total adjustments	(5,903)	(3,720)
Net cash (used) provided by operating activities	(1,196)	1,585
Cash flows from investing activities:
Purchase of property, plant, and equipment	(2,401)	(1,320)
Purchase of patents and trademarks		(29)
Acquisition of businesses	(7,233)	(6,971)
Net cash used by investing activities	(9,634)	(8,320)
Cash flows from financing activities:
Net borrowings of long-term debt	13,033	13,793
Cash settlement of stock options	(760)	(1,700)
Proceeds from issuance of common stock	649	390
Distributions to stockholders	(1,037)	(1,000)
Purchase of treasury stock		(907)
Net cash provided by financing activities	11,885	10,576
Effect of exchange rate changes on cash and cash equivalents	55	5
Net decrease in cash and cash equivalents	1,110	3,846
Cash and cash equivalents at beginning of period	5,911	2,426
Cash and cash equivalents at end of period	7,021	6,272
Supplemental cash flow information:
Cash paid for income taxes	728	839
Cash paid for interest	$ 908	$ 610