CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows From Operating Activities:
Net income	$ 4,198	$ 2,657
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	2,791	2,450
Deferred income taxes	2,822	(48)
Stock compensation expense	496	466
Debt issue cost amortization recorded in interest expense	37	37
Other	609	248
Changes in operating assets and liabilities, excluding changes due to acquisition:
Trade receivables	(8,231)	(4,768)
Inventories	(3,887)	221
Prepaid expenses and other assets	(1,408)	150
Accounts payable	5,479	1,302
Accrued liabilities	(1,211)	(383)
Net cash provided by operating activities	1,695	2,332
Cash Flows From Investing Activities:
Consideration paid for acquisition	(13,312)
Purchase of property and equipment	(2,222)	(1,288)
Net cash used in investing activities	(15,534)	(1,288)
Cash Flows From Financing Activities:
Borrowings on long-term debt	14,500
Principal payments of long-term debt	(4,350)	(3,000)
Dividends paid to stockholders		(228)
Stock transactions under employee benefit stock plans	849	628
Net cash provided by (used in) financing activities	10,999	(2,600)
Effect of foreign exchange rate changes on cash	253	121
Net decrease in cash and cash equivalents	(2,587)	(1,435)
Cash and cash equivalents at beginning of period	15,590	15,483
Cash and cash equivalents at end of period	$ 13,003	$ 14,048