CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net loss	$ (473,000)	$ (11,388,000)
Depreciation and amortization	39,000	31,000
Stock-based compensation expense	158,000	433,000
Change in fair value of warrant and liabilities	(3,192,000)	3,517,000
Change in fair value of convertible notes	(3,485,000)	4,218,000
Financing costs associated with convertible notes		80,000
Loss on extinguishment of convertible notes	3,274,000
Non-cash interest expense	158,000	215,000
Change in assets and liabilities:
Restricted cash	(250,000)
Accounts receivable	(87,000)	59,000
Inventories	15,000	3,000
Prepaid expenses and other current assets	36,000	12,000
Accounts payable	66,000	82,000
Deferred revenue	(312,000)	109,000
Accrued liabilities	(137,000)	65,000
Net cash flows used in operating activities	(4,190,000)	(2,564,000)
Cash flows used for investing activities:
Purchase of equipment, furniture, and leasehold improvements		(74,000)
Net cash flow used for investing activities		(74,000)
Cash flows from financing activities:
Net proceeds from sale of common stock and warrants	5,079,000
Net proceeds from issuance of convertible notes and warrants	250,000	920,000
Net cash provided by financing activities	5,329,000	920,000
Effect of exchange rate changes on cash and cash equivalents	7,000	(144,000)
Net (decrease) increase in cash and cash equivalents	1,146,000	(1,862,000)
Cash and cash equivalents at beginning of period	258,000	2,585,000
Cash and cash equivalents at end of period	1,404,000	723,000
Supplemental disclosure of cash flow information:
Cash paid for interest	112,000	154,000
Supplemental disclosure of non-cash financing activities:
Cashless exercise of warrants	2,655,000
Cashless conversion of convertible notes	$ 883,000