Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating activities:
Net income	$ 4,146	$ 1,236
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	1,478	1,686
Stock-based compensation	408	970
Deferred income taxes	1,427	454
Changes in operating assets and liabilities:
Accounts receivable	(6,273)	(831)
Inventories	(643)	19
Prepaid expenses and other assets	(2,314)	(1,864)
Accounts payable and other liabilities	(8,863)	(4,277)
Other	133	116
Net cash used in operating activities	(10,501)	(2,491)
Investing activities:
Purchases of property, plant and equipment	(248)	(652)
Business acquisition	0	(157)
Net cash used in investing activities	(248)	(809)
Financing activities:
Net proceeds from revolving lines of credit	2,308	3,356
Payment of financing lease principal	(52)	0
Net cash provided by financing activities	2,256	3,356
Effect of exchange rate changes on cash and cash equivalents	213	(115)
Decrease in cash, cash equivalents and restricted cash	(8,280)	(59)
Cash, cash equivalents and restricted cash at beginning of period	12,683	5,216
Cash, cash equivalents and restricted cash at end of period	4,403	5,157
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 12,683	$ 5,216