Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities:
Net income (loss)	$ (17)	$ 197
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	63	65
Software amortization	111	90
Stock-based compensation	85	65
Loss on disposal of assets	1	0
Changes in operating assets and liabilities:
Accounts receivable, net	583	199
Inventories	(53)	(83)
Prepaid expenses and other current assets	(69)	(10)
Accounts payable	24	297
Accrued expenses and other current liabilities	(472)	(126)
Net cash provided by operating activities	256	694
Investing activities:
Capitalized software development costs	(66)	(95)
Purchases of property and equipment	(47)	(33)
Net cash used for investing activities	(113)	(128)
Financing activities:
Stock for tax withholding	(10)	0
Net cash used for financing activities	(10)	0
Effect of exchange rate changes on cash	(1)	7
Increase in cash and cash equivalents	132	573
Cash and cash equivalents at beginning of period	3,190	1,547
Cash and cash equivalents at end of period	3,322	2,120
Non-Cash investing and financing activities:
Purchase of property and equipment in accounts payable	25	11
Capitalization of software development costs in accounts payable	$ 0	$ 79