Sharebased payments (Details 9) - Employee stock options Fully-vested upon grant [Member] - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Number of Shares | ||
| Number of shares outstanding, Beginning | 4,000,000 | |
| Number of shares outstanding, Ending | 4,000,000 | 4,000,000 |
| Number of shares exercisable, Ending | 4,000,000 | 4,000,000 |
| Weighted Average Exercise Price | ||
| Weighted average exercise price per share outstanding, Beginning | $ 2.00 | |
| Weighted average exercise price per share outstanding, Ending | 2.00 | 2.00 |
| Weighted average exercise price per share exercisable, Ending | $ 2.00 | $ 2.00 |
| Weighted-average Remaining Life (Years) | ||
| Outstanding, Beginning | ||
| Outstanding, Ending | ||
| Exercisable, Ending | ||
| Aggregate Intrinsic Value | ||
| Aggregate intrinsic value outstanding, Beginnig | ||
| Aggregate intrinsic value outstanding, Ending | ||
| Exercisable, Ending | ||