CONSOLIDATED STATEMENTS OF CASH FLOWS - (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (740)	$ 4,242
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	920	891
Provision for inventory losses	157	345
Provision for doubtful accounts	422	194
Loss on disposal of assets	3	8
Stock-based compensation expense	360	301
Tax benefit from exercise of stock options	0	(16)
Deferred income taxes	(166)	(139)
Changes in operating assets and liabilities:
Accounts receivable	(167)	(55)
Income tax receivable	(8)	(11)
Inventories	(2,412)	(4,242)
Prepaid expenses and other current assets	590	962
Other assets	400	(97)
Deferred commissions	(674)	351
Accounts payable	3,704	2,164
Accrued expenses and other liabilities	(934)	177
Taxes payable	469	(17)
Commissions and incentives payable	1,832	910
Deferred revenue	1,814	(1,038)
Change in restricted cash	0	(449)
Net cash provided by operating activities	5,570	4,481
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(1,408)	(1,174)
Net cash used in investing activities	(1,408)	(1,174)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from stock options exercised	11	29
Tax benefit from exercise of stock options	0	16
Repayment of capital lease obligations	(723)	(981)
Net cash used in financing activities	(712)	(936)
Effect of currency exchange rate changes on cash and cash equivalents	1,477	293
Net increase in cash and cash equivalents	4,927	2,664
Cash and cash equivalents at the beginning of the period	31,994	27,999
Cash and cash equivalents at the end of the period	36,921	30,663
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Income taxes paid	1,519	3,959
Interest paid on capital leases and financing arrangements	63	47
Assets acquired through financing arrangements	$ 409	$ 1,250