Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating activities:
Net income	$ 3,614	$ 9,451
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,120	4,940
Stock-based compensation	8,694	2,722
Deferred income taxes	830	0
Gain on sale of property	0	(5,422)
Changes in operating assets and liabilities:
Accounts receivable	(5,624)	(7,046)
Inventories	(566)	(373)
Prepaid expenses and other assets	(3,651)	(1,562)
Accounts payable and other liabilities	1,315	738
Other	442	307
Net cash provided by operating activities	10,174	3,755
Investing activities:
Purchases of property, plant and equipment	(1,626)	(1,228)
Business acquisition	(157)	0
Proceeds from sale of property	0	6,177
Net cash provided by (used in) investing activities	(1,783)	4,949
Financing activities:
Net proceeds from revolving lines of credit	(4,625)	(841)
Proceeds from stock option exercises	14	0
Payments for Repurchase of Common Stock	0	(20)
Net cash used in financing activities	(4,611)	(861)
Effect of exchange rate changes on cash and cash equivalents	(533)	779
Increase in cash, cash equivalents and restricted cash	3,247	8,622
Cash, cash equivalents and restricted cash at beginning of period	5,216	11,221
Cash, cash equivalents and restricted cash at end of period	$ 8,463	$ 19,843