CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash Flows From Operating Activities:
Net income	$ 10,944	$ 13,533
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	11,682	11,071
Deferred income taxes	(931)	(563)
Stock based compensation expense	2,640	2,374
Debt issue cost amortization recorded in interest expense	109	131
Other	360	581
Changes in operating assets and liabilities, net of acquisition:
Trade receivables	(2,136)	(13,643)
Inventories	(4,575)	1,664
Prepaid expenses and other assets	(725)	(232)
Accounts payable	492	(727)
Accrued liabilities	(2,840)	2,815
Net cash provided by operating activities	15,020	17,004
Cash Flows From Investing Activities:
Purchase of property and equipment	(6,560)	(9,280)
Cash paid for acquisitions, net of cash acquired	(14,728)
Net cash used in investing activities	(21,288)	(9,280)
Cash Flows From Financing Activities:
Borrowings on long term debt	26,979	9,091
Principal payments of long-term debt	(12,299)	(15,000)
Payment of debt issuance costs	(401)
Dividends paid to stockholders	(875)	(887)
Stock transactions under employee benefit stock plans	(814)	(717)
Net cash provided by (used in) financing activities	12,590	(7,513)
Effect of foreign exchange rate changes on cash	489	(306)
Net increase (decrease) in cash and cash equivalents	6,811	(95)
Cash and cash equivalents at beginning of period	13,416	8,673
Cash and cash equivalents at end of period	$ 20,227	$ 8,578