CONSOLIDATED STATEMENTS OF CASH FLOWS - Class of Stock [Domain] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net loss	$ (2,265)	$ (1,984)	$ (4,501)	$ (4,095)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization of deferred charges	24	25	47	50
Expenses related to shares and options granted to service providers	108	0	108	110
Amortization of deferred stock-based compensation related to options granted to employees and directors	321	176	668	298
Decrease (increase) in accounts receivable and prepaid expenses	362	(53)	671	64
Increase (decrease) in trade payables	(167)	431	(787)	529
Increase (decrease) in other accounts payable and accrued expenses	(33)	(256)	200	(79)
Revaluation of warrants	0	691	7	1,762
Total net cash used in operating activities	(1,650)	(970)	(3,587)	(1,361)
Cash flows from investing activities:
Purchase of property and equipment	(16)	0	(16)	(94)
Changes in short-term deposit	539	0	(14,104)	0
Investment in lease deposit	0	(2)	0	7
Total net cash used in investing activities	(555)	(2)	(14,120)	(87)
Cash flows from financing activities:
Proceeds from issuances of common stock through equity warrants and options exercises	0	215	2,348	215
Proceeds from issuance of Common stock, net	0	9,658	0	9,658
Proceeds from equity offering through issuances of equity warrants and common stock through the exercise of previously issued equity warrants	12	0	12,409	0
Redemption of warrants in cash	0	(600)	0	(600)
Total net cash provided by financing activities	12	9,273	14,757	9,273
Increase (decrease) in cash and cash equivalents	(2,193)	8,301	(2,950)	7,825
Cash and cash equivalents at the beginning of the period	3,494	3,027	4,251	3,503
Cash and cash equivalents at end of the period	1,301	11,328	1,301	11,328
Non-cash financing activities:
Stock issued for warrants exchange	0	1,633	0	1,633
Warrants liability classified as equity	0	42	130	42
Total non-cash financing activities	$ 0	$ 1,675	$ 130	$ 1,675