Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net loss	$ (3,379)	$ (4,237)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	204	216
Stock-based compensation to employees and advisors	449	828
Debt discount and cost amortization	206
Discount on liability settlement	92
Warrants fair-value adjustments	(101)
Non-cash interest expense	14
Changes in operating assets and liabilities:
(Increase) decrease in prepaid expenses and other current assets	(128)	22
Increase (decrease) in accounts payable and accrued expenses	279	1,906
Increase in deferred revenue	1,500
Net cash used in operating activities	(864)	(1,265)
Cash flows from investing activity:
Purchase of equipment	(3)	(5)
Net cash used in investing activity	(3)	(5)
Cash flows from financing activities:
Proceeds from equity financings, net of fees	551	1,488
Proceeds from debt financing, net of fees	608
Principal payment of short-term debt	(338)
Net cash provided by financing activities	821	1,488
Net decrease in cash and cash equivalents	(46)	218
Cash and cash equivalents, beginning of period	111	28
Cash and cash equivalents, end of period	65	246
Non-cash financing and investing activities:
Conversion of promissory note	150
Issuance of shares for fees	147
Issuance of warrants for advisory services	58
Equity conversion of accrued compensation payable	388
	$ 738