CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (DEFICIENCY) - USD ($) $ in Thousands | Total | Preferred stock | Common stock | Additional paid-in capital | Accumulated deficit |
Balance at Dec. 31, 2014 | $ (5,616) | | | [1] | | [1] | $ 11,234 | | $ (16,850) |
Balance (in shares) at Dec. 31, 2014 | | | 394,232 | | 163,580 | | | | |
Issuance of Common stock, net of issuance costs | 511 | | $ 0 | | | [1] | 511 | | 0 |
Issuance of Common stock, net of issuance costs (in shares) | | | 0 | | 216,667 | | | | |
Issuance of Preferred C stock, net of issuance costs | 1,964 | | | [1] | $ 0 | | 1,964 | | 0 |
Issuance of Preferred C stock, net of issuance costs (in shares) | | | 833,333 | | 0 | | | | |
Issuance of warrants to Common stock | 446 | | $ 0 | | $ 0 | | 446 | | 0 |
Conversion of Promissory Notes into Preferred B-1 stock and Preferred C stock | 1,359 | | $ 1 | | $ 0 | | 1,358 | | 0 |
Conversion of Promissory Notes into Preferred B-1 stock and Preferred C stock (in shares) | | | 683,650 | | 0 | | | | |
Conversion of Promissory Notes into Preferred B-2 stock and Preferred C stock | 2,101 | | $ 2 | | $ 0 | | 2,099 | | 0 |
Conversion of Promissory Notes into Preferred B-2 stock and Preferred C stock (in shares) | | | 1,508,001 | | 0 | | | | |
Issuance of warrants to consultant | 84 | | $ 0 | | $ 0 | | 84 | | 0 |
Issuance of warrants to consultant (in shares) | | | 0 | | 0 | | | | |
Stock-based compensation related to options granted to consultants and employees | 10 | | $ 0 | | $ 0 | | 10 | | 0 |
Total comprehensive loss | (630) | | 0 | | $ 0 | | 0 | | (630) |
Balance at Mar. 31, 2015 | 229 | | $ 3 | | | [1] | 17,706 | | (17,480) |
Balance (in shares) at Mar. 31, 2015 | | | 3,419,216 | | 380,247 | | | | |
Balance at Dec. 31, 2014 | (5,616) | | | [1] | | [1] | 11,234 | | (16,850) |
Balance (in shares) at Dec. 31, 2014 | | | 394,232 | | 163,580 | | | | |
Issuance of Common stock, net of issuance costs | 511 | | $ 0 | | $ 0 | [1] | 511 | | 0 |
Issuance of Common stock, net of issuance costs (in shares) | | | 0 | | 216,667 | | | | |
Issuance of Preferred C stock, net of issuance costs | 1,964 | | $ 0 | [1] | $ 0 | | 1,964 | | 0 |
Issuance of Preferred C stock, net of issuance costs (in shares) | | | 833,333 | | 0 | | | | |
Issuance of warrants to Common stock | 446 | | $ 0 | | $ 0 | | 446 | | 0 |
Conversion of Promissory Notes into Preferred B-1 stock and Preferred C stock | 1,359 | | $ 1 | | $ 0 | | 1,358 | | 0 |
Conversion of Promissory Notes into Preferred B-1 stock and Preferred C stock (in shares) | | | 683,651 | | 0 | | | | |
Conversion of Promissory Notes into Preferred B-2 stock and Preferred C stock | 2,101 | | $ 2 | | $ 0 | | 2,099 | | 0 |
Conversion of Promissory Notes into Preferred B-2 stock and Preferred C stock (in shares) | | | 1,508,001 | | 0 | | | | |
Conversion of Preferred A-1, A-2, B-1 and B-2 stock into Common stock | 0 | | $ (2) | | $ 2 | | 0 | | 0 |
Conversion of Preferred A-1, A-2, B-1 and B-2 stock into Common stock (in shares) | | | (2,128,868) | | 2,131,081 | | | | |
Conversion of Convertible Promissory Notes into Preferred C stock | 1,606 | | $ 1 | | $ 0 | | 1,605 | | 0 |
Conversion of Convertible Promissory Notes into Preferred C stock (in shares) | | | 603,769 | | 0 | | | | |
Issuance of warrants to consultant | 84 | | $ 0 | | $ 0 | | 84 | | 0 |
Issuance of warrants to consultant (in shares) | | | 0 | | 0 | | | | |
Issuance of Preferred C stock to a consultant | $ 0 | [1] | $ 0 | | $ 0 | | 0 | [1] | 0 |
Issuance of Preferred C stock to a consultant (in shares) | 0 | | 57,143 | | | | | | |
Issuance of Common stock to a consultant | $ 0 | | $ 0 | | $ 0 | [1] | 0 | [1] | 0 |
Issuance of Common stock to a consultant (in shares) | | | 0 | | 100,000 | | | | |
Stock-based compensation related to options granted to consultants and employees | 220 | | $ 0 | | $ 0 | | 220 | | 0 |
Total comprehensive loss | (2,884) | | 0 | | 0 | | 0 | | (2,884) |
Balance at Dec. 31, 2015 | (209) | | $ 2 | | $ 2 | | 19,521 | | (19,734) |
Balance (in shares) at Dec. 31, 2015 | | | 1,951,261 | | 2,611,328 | | | | |
Issuance of Common Stock upon exercise of options | 33 | | $ 0 | | | [1] | 33 | | 0 |
Issuance of Common Stock upon exercise of options (in shares) | | | 0 | | 12,382 | | | | |
Stock-based compensation related to options granted to consultants and employees | 0 | | $ 0 | | $ 0 | | 65 | | 0 |
Total comprehensive loss | (495) | | 0 | | 0 | | 0 | | (495) |
Balance at Mar. 31, 2016 | $ (606) | | $ 2 | | $ 2 | | $ 19,619 | | $ (20,229) |
Balance (in shares) at Mar. 31, 2016 | | | 1,951,261 | | 2,623,710 | | | | |
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[1] | Represents an amount lower than $ 1 thousands. |