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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Cash flows from operating activities:    
Net loss $ (7,159) $ (14,373)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock-based compensation expense 2,957 517
Depreciation and amortization 68 17
Debt discounts and deferred financing fees and the valuation of conversion features and warrants    11,043
Changes in operating assets and liabilities:    
Accounts receivable 1,841 (450)
Prepaid expenses (135) (12)
Accounts payable and accrued expenses 138 (205)
Deferred revenue 688 2,038
Net cash used in operating activities (1,602) (1,425)
Cash flows from investing activities:    
Purchase of property and equipment (290) (59)
Net cash used in investing activities (290) (59)
Cash flows from financing activities:    
Proceeds from issuance of convertible debt    4,228
Repayment of convertible debt    (25)
Proceeds from exercise of warrants 155 515
Net cash provided by financing activities 155 4,718
Effect of exchange rate changes on cash 43 1
Net (decrease) increase in cash (1,694) 3,235
Cash at beginning of period 12,940 911
Cash at end of period 11,246 4,146
Cash paid during the period for:    
Interest paid    90
Income taxes paid 71 4
Supplemental disclosure of non-cash transactions:    
Debt discount recorded as part of convertible debt financing transactions including, warrants issued    4,228
Debt issuance costs related to 2011 financing    35
Accrued expenses converted to common stock    120
Conversion of debt and accrued interest to common stock    2,860
Reduction of derivative liabilities upon conversion of debt    $ 13,379