General (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |
1 Months Ended | 6 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
May 22, 2019 |
May 10, 2019 |
Mar. 11, 2019 |
Apr. 29, 2019 |
Apr. 04, 2019 |
Feb. 25, 2019 |
Jan. 31, 2019 |
Jan. 18, 2019 |
Jun. 30, 2019 |
Jun. 30, 2018 |
Dec. 31, 2018 |
|
| General (Textual) | |||||||||||
| Net loss | $ (4,893) | $ (2,965) | |||||||||
| Accumulated deficit | $ (105,516) | $ (100,623) | |||||||||
| Ordinary shares of unlisted options exercisable grant | 400,000 | 340,000 | |||||||||
| Options vest on quarterly basis for a period | 48 months | 4 years | |||||||||
| Aggregate ordinary shares | 45,000,000 | 9,846,156 | 4,476,192 | ||||||||
| Warrants to purchase shares | 4,476,192 | ||||||||||
| Aggregate purchase price | $ 2,350 | ||||||||||
| Excluding issuance cost | $ 540 | $ 414 | $ 428 | $ 258 | |||||||
| Upfront and milestone payments payable amount | $ 1,000 | ||||||||||
| Gross proceeds amount | $ 6,000 | $ 3,200 | |||||||||
| Description of american depositary share | The Company effected a change in the ratio of our 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. | ||||||||||
| CKD [Member] | |||||||||||
| General (Textual) | |||||||||||
| Upfront and milestone payments payable amount | $ 6,000 | ||||||||||
| ADS [Member] | |||||||||||
| General (Textual) | |||||||||||
| Exercise price | $ 4.00 | $ 12.90 | $ 19.50 | ||||||||
| Aggregate ordinary shares | 1,500,000 | 328,205 | 149,206 | ||||||||
| Warrants to purchase shares | 149,206 | ||||||||||
| Exercisable terms, description | Exercisable and will expire five and one-half years from the issuance date. | Exercisable and expire five years from the issuance date. | Exercisable and expire five and one-half years from the issuance date. | ||||||||
| Warrant exercise price | $ 4.00 | $ 12.90 | |||||||||
| ADS [Member] | Placement Agents [Member] | |||||||||||
| General (Textual) | |||||||||||
| Exercise price | $ 4.00 | ||||||||||
| Options vest on quarterly basis for a period | 5 years | ||||||||||
| Aggregate ordinary shares | 75,000 | 492,308 | 223,810 | ||||||||
| Warrants to purchase shares | 2,250,000 | 16,410 | 7,460 | ||||||||
| NIS [Member] | |||||||||||
| General (Textual) | |||||||||||
| Exercise price | $ 2.344 | $ 2.344 | |||||||||