XML 17 R6.htm IDEA: XBRL DOCUMENT v3.8.0.1
Statement of Changes in Stockholders' Equity (Parenthetical) - shares
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Statement of Stockholders' Equity [Abstract]    
Sale of common stock units 5,000,000
Sale of private units 421,107
Forfeiture and cancellation of shares 109,973