Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating activities
Net income	$ 15,113	$ 7,221
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	(6,701)	(5,893)
Stock-based compensation	(1,479)	(4,054)
Deferred income taxes	(167)	2,169
Goodwill impairment	1,918	0
Changes in operating assets and liabilities, net of effect of acquired businesses:
Accounts receivable	1,762	(1,380)
Inventories	2,100	(2,308)
Miscellaneous receivables, prepaid expenses and other assets	(2,899)	(3,890)
Accounts payable and other liabilities	(5,788)	3,230
Other	733	667
Net cash provided by operating activities	32,528	9,196
Investing activities
Purchases of property, plant and equipment	(1,687)	(2,028)
Business acquisition, net of acquired cash	(2,300)	0
Net cash used in investing activities	(3,987)	(2,028)
Financing activities
Net payments on revolving lines of credit	(2,271)	(8,552)
Shares repurchased held in treasury	(3,254)	(4,527)
Payment of financing fees	0	(573)
Payment of financing lease principal	(257)	(271)
Proceeds from stock option exercises	15	33
Net cash used in financing activities	(5,767)	(13,890)
Effect of exchange rate changes on cash and cash equivalents	320	336
Increase (decrease) in cash and cash equivalents and restricted cash	23,094	(6,386)
Cash, cash equivalents and restricted cash at beginning of year	6,297	12,683
Cash, cash equivalents and restricted cash at end of year	29,391	6,297
Total cash, cash equivalents and restricted cash	29,391	12,683
Supplemental disclosure of cash flow information
Net noncash financing liability related to acquisition	(32,673)	0
Net cash paid for income taxes	5,377	947
Net cash paid for interest	$ 398	$ 590