Annual report pursuant to Section 13 and 15(d)

Stockholders' equity (Details)

v3.7.0.1
Stockholders' equity (Details)
 1 Months Ended
Oct. 16, 2013
USD ($)
$ / shares
shares
Feb. 29, 2016
shares
Feb. 09, 2016
USD ($)
shares
Dec. 31, 2016
$ / shares
shares
Jan. 19, 2016
$ / shares
shares
Jan. 15, 2016
Dec. 31, 2015
$ / shares
shares
Oct. 15, 2013
shares
Class of Stock [Line Items]                
Common stock, shares authorized (in shares)       75,000,000     75,000,000  
Common stock, par value (In dollars per share) | $ / shares       $ 0.0001     $ 0.0001  
Preferred stock, shares authorized (in shares)       10,000,000     10,000,000  
Preferred stock, par value (in dollars per share) | $ / shares       $ 0.0001     $ 0.0001  
Common stock, shares outstanding (in shares)       25,050,628     24,972,515  
Preferred stock, shares outstanding (in shares)       0     0  
Payments to acquire member interest | $ $ 11,750,000              
Maximum number of shares available for purchase for rights offering (in shares)         1,454,545      
Rights conversion ratio into shares for rights offering         1      
Exercise price per share for rights offering (in dollars per share) | $ / shares         $ 2.75      
Rights conversion ratio from common stock owned for rights offering           0.0582    
Gross proceeds from issuance of stock from rights offering | $     $ 4,000,000          
Number of shares issued from rights offering (in shares)     1,454,545          
Number of shares issued for basic subscription rights from rights offering (in shares)     632,582          
Net proceeds from issuance of stock from rights offering | $     $ 3,800,000          
Common stock                
Class of Stock [Line Items]                
Total merger consideration (in shares) 12,631,400              
Escrow shares (in shares) 2,000,000              
Initial Stockholders                
Class of Stock [Line Items]                
Common stock, shares outstanding (in shares) 9,125,000             12,500,000
Shares forfeited (in shares) 3,375,000 1,437,500            
Mr. Segal                
Class of Stock [Line Items]                
Shares issued to chief executive officer and related entities as pro rata portion of shares (in shares) 7,680,666              
Mr. Segal | Common stock                
Class of Stock [Line Items]                
Shares issued to CEO and director as a control premium (in shares) 1,000,000              
Directors | Common stock                
Class of Stock [Line Items]                
Issuance of restricted stock (in shares) 59,000              
The One Group                
Class of Stock [Line Items]                
Number of shares exchanged for warrants exercised (in shares) 5,750,000              
Exercise price of warrants (in dollars per share) | $ / shares $ 5.00