Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income	$ 606	$ 274
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	28	26
Stock based compensation	25	7
Changes in operating assets and liabilities:
Accounts receivable	(199)	162
Inventories	(168)	(36)
Prepaid expenses and other current assets	79	51
Other assets	(31)	2
Accounts payable	(83)	(123)
Accrued liabilities	(58)	(70)
Deferred revenue	(14)	(13)
Net cash provided by operations	185	280
Cash flows from investing activities:
Purchases of property and equipment	(9)	(35)
Net cash used in investing activities	(9)	(35)
Effect of exchange rate changes on cash and cash equivalents	4	(1)
Increase in cash and cash equivalents	180	244
Cash and cash equivalents, beginning of year	4,435	2,386
Cash and cash equivalents, end of year	4,615	2,630
Supplemental disclosure of non-cash activities
Income taxes (refunded) paid	$ (15)	$ 1