CONSOLIDATED STATEMENTS OF CASH FLOWS - (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 4,310	$ 4,644
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,324	1,248
Provision for inventory losses	434	1,630
Provision for doubtful accounts	275	266
Loss on disposal of assets	28	42
Accounting charge related to stock-based compensation expense	450	397
Tax benefit from exercise of stock options	(16)	0
Deferred income taxes	6	(2,148)
Changes in operating assets and liabilities:
Accounts receivable	(77)	(78)
Income tax receivable	(16)	(22)
Inventories	(1,730)	(148)
Prepaid expenses and other current assets	655	950
Other assets	(138)	(187)
Deferred commissions	230	(2,388)
Accounts payable	116	(131)
Accrued expenses and other liabilities	633	1,885
Taxes payable	(637)	5,449
Commissions and incentives payable	2,174	(271)
Deferred revenue	(210)	6,488
Change in restricted cash	26	(3,131)
Net cash provided by operating activities	7,837	14,495
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(1,583)	(2,173)
Proceeds from sale of assets	0	8
Net cash used in investing activities	(1,583)	(2,165)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from stock options exercised	30	112
Tax benefit from exercise of stock options	16	0
Proceeds from note payable	1,148	0
Repayment of capital lease obligations	(1,276)	(1,102)
Net cash used in financing activities	(82)	(990)
Effect of currency exchange rate changes on cash and cash equivalents	1,121	450
Net increase in cash and cash equivalents	7,293	11,790
Cash and cash equivalents at the beginning of the period	27,999	20,395
Cash and cash equivalents at the end of the period	35,292	32,185
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Income taxes paid, net	4,394	2,180
Interest paid on capital leases	69	88
Summary of non-cash investing and financing activities:
Assets acquired through financing arrangements	$ 671	$ 1,821