Shareholders' Equity (Details) $ / shares in Units, $ in Thousands |
1 Months Ended | 12 Months Ended | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
May 10, 2019 |
Apr. 04, 2019
USD ($)
$ / shares
shares
|
Mar. 13, 2018
USD ($)
$ / shares
shares
|
Dec. 31, 2019
shares
|
Sep. 30, 2019
shares
|
May 22, 2019
USD ($)
$ / shares
shares
|
Jan. 18, 2019
USD ($)
$ / shares
shares
|
Dec. 31, 2018
shares
|
May 31, 2018
shares
|
Dec. 31, 2017
USD ($)
|
Jan. 31, 2017
USD ($)
shares
|
Oct. 30, 2015
shares
|
Sep. 30, 2015
shares
|
Dec. 31, 2014
shares
|
Mar. 31, 2014
shares
|
Nov. 28, 2013
₪ / shares
shares
|
Dec. 31, 2019
USD ($)
|
Dec. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
|
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Fair value of the warrants | $ | $ (2,457) | ||||||||||||||||||
| 2013 Plan [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Shares reserved for issuance | 2,500,000 | ||||||||||||||||||
| Warrants, description | The warrants issued in the March 2014 Financing were exercisable after 6 months from the date of issuance for a period of four years and had an exercise price of $ 96.3 per ADS (equivalent to $ 3.215 per ordinary share) (subject to certain adjustments). The warrants issued in the December 2014 Financing were exercisable for a period of five years following issuance and had an exercise price of $ 66.75 per ADS (equivalent to $ 2.225 per ordinary share) (subject to certain adjustments). The fair value of the warrants issued as part of the December 2014 Financing, as of 2017 was $37 thousand. | ||||||||||||||||||
| 2013 Plan [Member] | NIS [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Price per share | ₪ / shares | ₪ 0.25 | ||||||||||||||||||
| October 2015 Financing [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Warrants, description | The warrants were exercisable after 6 months from the date of issuance for a period of five and a half years and had an exercise price of $ 78.75 per ADS (equivalent to $ 2.625 per ordinary share) (subject to certain adjustments). The fair value of the warrants issued as part of the September 2015 Financing, as of December 31, 2017 was $585 thousand. The fair value of the warrants issued as part of the October 2015 Financing, as of December 31, 2016 and 2017 were $498 thousand, and $252 thousand, respectively. | ||||||||||||||||||
| January 2017 Financing [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Warrants, description | The Company reclassified its warrants with an exercise price denominate in USD to equity according to the warrants fair value on that date in an amount of $2,030 that were outstanding as of December 31, 2017, as a financial liability. | The warrants may be exercised after 6 months from the date of issuance for a period of five and a half years and have an exercise price of USD 2.25 per ADS (subject to certain adjustments). The Company also issued placement agent warrants to purchase 125,000 ADSs representing 250,000 ordinary shares exercisable at USD 2.25 per ADS, subject to certain adjustments, for a period of five years. The investor warrants and placement agent warrants may be exercised on a cashless basis if six months after issuance there is no effective registration statement registering the ADSs underlying the warrants. | |||||||||||||||||
| Fair value of the warrants | $ | $ 1,156 | $ 1,868 | |||||||||||||||||
| Ordinary Share [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Reverse stock split, description | The Company effected a change in the ratio of the Company's ADS to ordinary shares from one (1) ADS representing two (2) ordinary shares to a new ratio of one (1) ADS representing thirty (30) ordinary shares. For ADS holders, the ratio change had the same effect as a one-for-fifteen reverse ADS split. | ||||||||||||||||||
| Shares issued | 400,000 | ||||||||||||||||||
| American Depository Shares [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Aggregate shares sold | 2,500,000 | 1,109,196 | 2,068,966 | 1,797,753 | |||||||||||||||
| Warrant to purchase common shares | 1,250,000 | 443,678 | 1,034,483 | 898,877 | |||||||||||||||
| Aggregate purchase price | $ | $ 5,000 | ||||||||||||||||||
| Shares issued | 18,500 | 200,000 | |||||||||||||||||
| American Depository Shares [Member] | Institutional Investors [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Aggregate shares sold | 328,205 | 3,333,336 | 1,500,000 | 149,206 | |||||||||||||||
| Warrant to purchase common shares | 2,500,002 | ||||||||||||||||||
| Exercise price of warrant | $ / shares | $ 2.00 | ||||||||||||||||||
| American Depository Shares [Member] | Private Placement [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Aggregate shares sold | 328,205 | 1,500,000 | 149,206 | 982,344 | |||||||||||||||
| Warrant to purchase common shares | 166,667 | ||||||||||||||||||
| Exercise price of warrant | $ / shares | $ 12.90 | $ 2.00 | $ 4.00 | $ 19.50 | |||||||||||||||
| Warrant to purchase additional common shares | 491,172 | ||||||||||||||||||
| American Depository Shares [Member] | Unregistered placement [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Shares issued | 16,410 | 75,000 | 7,460 | ||||||||||||||||
| Ordinary Share [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Aggregate shares sold | 5,000,000 | 2,218,392 | 4,137,932 | 3,595,506 | |||||||||||||||
| Warrant to purchase common shares | 2,500,000 | 887,356 | 2,068,966 | 1,797,753 | |||||||||||||||
| Shares issued | 996,690 | 19,934,355 | 37,000 | ||||||||||||||||
| Ordinary Share [Member] | Institutional Investors [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Aggregate shares sold | 9,846,156 | 6,666,672 | 45,000,000 | 4,476,192 | |||||||||||||||
| Warrant to purchase common shares | 5,000,004 | ||||||||||||||||||
| Aggregate purchase price | $ | $ 5,000 | ||||||||||||||||||
| Issuance cost | $ | $ 613 | ||||||||||||||||||
| Ordinary Share [Member] | Private Placement [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Aggregate shares sold | 9,846,156 | 45,000,000 | 4,476,192 | 1,964,688 | |||||||||||||||
| Aggregate purchase price | $ | $ 3,200 | $ 6,000 | $ 2,350 | ||||||||||||||||
| Issuance cost | $ | $ 414 | $ 540 | $ 428 | ||||||||||||||||
| Expiry date, description | Five years. | Five and one-half years. | Five and one-half years. | ||||||||||||||||
| Warrant to purchase additional common shares | 982,344 | ||||||||||||||||||
| Ordinary Share [Member] | Unregistered placement [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Shares issued | 492,308 | 2,250,000 | 223,810 | ||||||||||||||||
| Private Placement [Member] | Ordinary Share [Member] | |||||||||||||||||||
| Shareholders' Equity (Textual) | |||||||||||||||||||
| Warrant to purchase common shares | 333,334 | ||||||||||||||||||