CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash Flows From Operating Activities:
Net income	$ 13,533	$ 13,289
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	11,071	8,454
Deferred income taxes	(563)	(484)
Stock compensation expense	2,374	1,787
Debt issue cost amortization recorded in interest expense	131	113
Other	581	521
Changes in operating assets and liabilities, net of acquisition:
Trade receivables	(13,643)	(11,727)
Inventories	1,664	(11,067)
Prepaid expenses and other assets	(232)	(1,610)
Accounts payable	(727)	8,093
Accrued liabilities	2,815	3,917
Net cash provided by operating activities	17,004	11,286
Cash Flows From Investing Activities:
Purchase of property and equipment	(9,280)	(10,581)
Cash paid for acquisition, net of cash acquired		(13,312)
Net cash used in investing activities	(9,280)	(23,893)
Cash Flows From Financing Activities:
Borrowings on long-term debt	9,091	17,658
Principal payments of long-term debt	(15,000)	(8,350)
Dividends paid to stockholders	(887)	(800)
Stock transactions under employee benefit stock plans	(717)	262
Net cash (used in) provided by financing activities	(7,513)	8,770
Effect of foreign exchange rate changes on cash	(306)	(396)
Net decrease in cash and cash equivalents	(95)	(4,233)
Cash and cash equivalents at beginning of period	8,673	15,590
Cash and cash equivalents at end of period	$ 8,578	$ 11,357