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Background and Basis of Presentation - Additional Information (Details)
Feb. 21, 2017
shares
Feb. 20, 2017
shares
Dec. 31, 2016
shares
Dec. 31, 2015
shares
Basis of Presentation [Line Items]        
Common stock, shares authorized (in shares)     10,000,000 10,000,000
Subsequent Event        
Basis of Presentation [Line Items]        
Common stock, shares authorized (in shares) 10,000,000 100,000,000    
Reverse stock split conversion ratio 0.1