CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Cash flows from operating activities:    
Net loss $ (9,246) $ (4,899)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization of deferred charges 106 97
Stock based compensation related to shares and warrants granted to service providers 198 227
Stock-based compensation related to options granted to employees 1,024 674
Increase in accounts receivable and prepaid expenses (93) (155)
Increase (decrease) in trade payables 1,314 (130)
Increase in other accounts payable and accrued expenses 467 306
Revaluation of warrants 1,743 (174)
Total net cash used in operating activities (4,487) (4,054)
Cash flows from investing activities:    
Purchase of property and equipment (161) (108)
Changes in short-term deposit (4,290) 2,769
Investment in lease deposit 1 (5)
Total net cash provided by (used in) investing activities (4,450) 2,656
Cash flows from financing activities:    
Proceeds from issuance of Common stock, net 9,554 3,576
Proceeds from exercise of warrants and options 731 8
Redemption of warrants in cash (600) 0
Total net cash provided by financing activities 9,685 3,584
Increase (decrease) in cash and cash equivalents 748 2,186
Cash and cash equivalents at the beginning of the period 3,503 1,317
Cash and cash equivalents at end of the period 4,251 3,503
Non-cash financing activities:    
Stock issued for warrants exchange 1,633 0
Warrants liability classified as equity $ 42 $ 0