Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating activities:
Net income	$ 14,890	$ 10,227
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,660	4,401
Stock-based compensation	(2,767)	7,621
Deferred income taxes	1,454	3,252
Changes in operating assets and liabilities, net of acquisition
Accounts receivable	(2,128)	(7,785)
Inventories	1,101	(1,593)
Prepaid expenses and other assets	(725)	(2,433)
Accounts payable and other liabilities	3,097	(6,193)
Other	441	544
Net cash provided by operating activities	20,023	8,041
Investing activities:
Purchases of property, plant and equipment	(1,311)	(1,392)
Payments to Acquire Businesses, Net of Cash Acquired	(2,300)	0
Net cash used in investing activities	(3,611)	(1,392)
Financing activities:
Net payments on revolving line of credit	(2,271)	(8,628)
Repurchase treasury shares	(2,192)	(1,361)
Payment of financing lease principal	(192)	(192)
Proceeds from stock option exercises	15	16
Net cash used in financing activities	(4,640)	(10,165)
Effect of exchange rate changes on cash and cash equivalents	(74)	259
Increase (decrease) in cash, cash equivalents and restricted cash	11,698	(3,257)
Cash, cash equivalents and restricted cash at beginning of period	6,297	12,683
Cash, cash equivalents and restricted cash at end of period	17,995	9,426
Cash, cash equivalents and restricted cash	17,995	9,426
Supplemental disclosure of cash flow information
Net cash paid for income taxes	3,733	458
Net cash paid for interest	$ 295	$ 499