Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities:
Net income	$ 12,533	$ 4,146
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	1,509	1,478
Stock-based compensation	(10,700)	408
Deferred income taxes	3,196	1,427
Changes in operating assets and liabilities:
Accounts receivable	(3,528)	(6,273)
Inventories	(1,500)	(643)
Prepaid expenses and other assets	(223)	(2,314)
Accounts payable and other liabilities	(8,486)	(8,863)
Other	311	133
Net cash used in operating activities	(6,888)	(10,501)
Investing activities:
Purchases of property, plant and equipment	(551)	(248)
Net cash used in investing activities	(551)	(248)
Financing activities:
Net proceeds from the revolving line of credit	8,189	2,308
Repurchase treasury shares	(1,756)	0
Payment of financing lease principal	(67)	(52)
Net cash provided by financing activities	6,366	2,256
Effect of exchange rate changes on cash and cash equivalents	(327)	213
Decrease in cash, cash equivalents and restricted cash	(1,400)	(8,280)
Cash, cash equivalents and restricted cash at beginning of period	6,297	12,683
Cash, cash equivalents and restricted cash at end of period	4,897	4,403
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	4,897	4,403
Net cash paid for income taxes	198	99
Net cash paid for interest	$ 147	$ 167