Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating activities:
Net loss	$ (5,290)	$ (3,199)
Adjustments to reconcile net loss to net cash provided by (used for) operating activities:
Depreciation	298	432
Amortization	782	681
Stock-based compensation	186	86
Changes in operating assets and liabilities:
Accounts receivable, net	266	(538)
Inventories	20	(371)
Prepaid expenses and current assets	173	(1,901)
Accounts payable	801	788
Accrued liabilities	(820)	1,183
Net cash used for operating activities	(3,584)	(2,839)
Investing activities:
Sales and maturities of marketable securities	2,639	3,289
Purchases of marketable securities		(2,867)
Purchases of property and equipment	(196)	(239)
Purchase of other investments		(300)
Capitalized software development costs	(42)	(459)
Net cash provided by (used for) investing activities	2,401	(576)
Financing activities:
Proceeds from exercise of stock options		9
Net cash provided by financing activities		9
Effect of exchange rate changes on cash	195	(185)
Decrease in cash and cash equivalents	(988)	(3,591)
Cash and cash equivalents at beginning of period	3,564	8,334
Cash and cash equivalents at end of period	$ 2,576	$ 7,536