v3.20.1
Additional paid in capital - Fair Value Method Stock-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Fair Value Method Stock-Based Compensation [Abstract]    
Risk-free interest rate 184.00% 2.52%
Expected life 5 years 5 years
Expected dividends $ 0 $ 0
Expected volatility 306.00% 309.00%
Forfeiture rate $ 0 $ 0