Preferred Shares Subject to Mandatory Redemption (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands |
9 Months Ended | ||
|---|---|---|---|
Sep. 11, 2017 |
Oct. 31, 2017 |
Oct. 31, 2016 |
|
| Share price | $ 0.03 | ||
| Gross proceeds from issuance of preferred stock | $ 700 | ||
| Subscription Agreements [Member] | Broadwood Partners L.P. [Member] | Series A Preferred Stock [Member] | |||
| Number of shares issued during period | 5,000,000 | ||
| Warrant to purchase common stock | 18,026,500 | ||
| Subscription Agreements [Member] | Elkhorn Partners Limited Partnership [Member] | Series A Preferred Stock [Member] | |||
| Number of shares issued during period | 2,000,000 | ||
| Warrant to purchase common stock | 7,210,600 | ||
| Subscription Agreements [Member] | Broadwood Partners, L.P. and Elkhorn Partners Limited Partnership [Member] | Series A Preferred Stock [Member] | |||
| Share price | $ 0.10 | ||
| Gross proceeds from issuance of preferred stock | $ 700 | ||
| Warrant term | 8 years | ||
| Warrant exercise price per share | $ 0.05 | ||