CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (3,886)	$ (1,787)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	2,064	1,864
Provision for inventory losses	710	714
Provision for doubtful accounts	543	351
Loss on disposal of assets	4	1
Stock-based compensation expense	1,145	490
Deferred income taxes	1,167	2,143
Changes in operating assets and liabilities:
Accounts receivable	(376)	(308)
Income tax receivable	616	686
Inventories	(4,145)	2,379
Prepaid expenses and other current assets	407	1,540
Other assets	(17)	477
Deferred commissions	1,431	(549)
Accounts payable	716	710
Accrued expenses and other liabilities	(96)	(315)
Taxes payable	251	1,226
Commissions and incentives payable	2,531	518
Deferred revenue	(3,287)	184
Net cash (used in) provided by operating activities	(222)	10,324
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(2,338)	(1,340)
Proceeds from sale of assets	62	1
Net cash used in investing activities	(2,276)	(1,339)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from stock options exercised	114	83
Repurchase of common stock	(7,543)	(226)
Payment of cash dividends	(3,086)	(1,354)
Repayment of capital lease obligations	(1,540)	(1,567)
Net cash used in financing activities	(12,055)	(3,064)
Effect of currency exchange rate changes on cash, cash equivalents and restricted cash	(1,624)	4,214
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(16,177)	10,135
Cash, cash equivalents and restricted cash at the end of the year	21,845	37,682
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Income taxes paid, net	800	1,694
Interest paid on capital leases	64	68
Accrued asset purchases	261	238
Assets acquired through financing arrangements	2,281	130
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 30,584	$ 46,761