Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net income (loss)	$ (85,000)	$ 137,000
Depreciation and amortization	24,000	26,000
Stock-based compensation expense	97,000	77,000
Change in fair value of warrant and options liabilities	(1,867,000)	(2,114,000)
Change in fair value of convertible notes	(344,000)	(1,865,000)
Loss on extinguishment of convertible notes		1,283,000
Non-cash interest expense	8,000	95,000
Change in assets and liabilities:
Restricted cash	30,000	(500,000)
Accounts receivable	152,000	194,000
Inventories	11,000	21,000
Prepaid expenses and other assets	(56,000)	(28,000)
Accounts payable	350,000	55,000
Deferred revenue	108,000	(266,000)
Accrued liabilities	397,000	15,000
Net cash flows used in operating activities	(1,175,000)	(2,870,000)
Cash flows from financing activities:
Net proceeds from sale of common stock and warrants		3,504,000
Net proceeds from issuance of convertible notes and warrants	500,000	250,000
Net cash provided by financing activities	500,000	3,754,000
Effect of exchange rate changes on cash and cash equivalents	(7,000)	(14,000)
Net (decrease) increase in cash and cash equivalents	(682,000)	870,000
Cash and cash equivalents at beginning of period	769,000	258,000
Cash and cash equivalents at end of period	87,000	1,128,000
Supplemental disclosure of cash flow information:
Cash paid for interest		112,000
Supplemental disclosure of non-cash financing activities:
Cashless settlement of warrants	851,000	2,003,000
Cashless conversion of convertible notes		$ 450,000