XML 65 R31.htm IDEA: XBRL DOCUMENT v3.8.0.1
Shareholders' Equity (Details)
$ / shares in Units, $ in Millions
Aug. 29, 2016
USD ($)
$ / shares
shares
Dec. 31, 2017
Vote
$ / shares
shares
Dec. 31, 2016
$ / shares
shares
Preferred Stock [Abstract]      
Preferred stock, shares authorized (in shares)   5,000,000 5,000,000
Preferred stock, par value (in dollars per share) | $ / shares   $ 0 $ 0
Preferred stock, shares issued (in shares)   0 0
Preferred stock, shares outstanding (in shares)   0 0
Common Stock [Abstract]      
Common stock, shares authorized (in shares)   50,000,000 50,000,000
Common shares, par value (in dollars per share) | $ / shares   $ 0 $ 0
Number of votes for each share | Vote   1  
Issuance of Common Stock and Warrants [Abstract]      
Issuance of separable units (in shares) 3,246,153    
Number of common shares available in each separable unit (in shares) 1    
Number of warrants to purchase stock in each separable unit (in shares) 1    
Number of common shares callable by each warrant (in shares) 1    
Separable units, exercise price (in dollars per share) | $ / shares $ 3.25    
Percentage of ownership interest 51.20%    
Proceeds from sale of stock | $ $ 9.8