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Stockholders' Equity - Series A & B Preferred Stock (Details)
$ / shares in Units, $ in Millions
Aug. 02, 2016
USD ($)
$ / shares
shares
Preferred stock  
Conversion of preferred stock to common stock (in shares) 5,924,453
Number of new stock issued relating to the IPO that Series A and Series B preferred stockholders are entitled to receive 2,354,323
IPO  
Preferred stock  
Number of shares of common stock sold 4,120,000
Share price (in dollars per share) | $ / shares $ 10.00
Series B Preferred Stock  
Preferred stock  
Preferred stock to common stock conversion ratio 1
Number of new stock issued to pay accrued stock dividends relating to initial offering price 956,842
Series A Preferred Stock  
Preferred stock  
Preferred stock to common stock conversion ratio 1.03
Accrued Cumulative Dividends | $ $ 8.2
Payment of dividends | $ $ 0.1