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Stockholders' Equity - Schedule of Common Stock Reserved for Future Issuance (Details) - shares
Sep. 30, 2017
 [1]
Dec. 31, 2016
Class Of Stock [Line Items]    
Common stock, reserved for future issuance 1,626,693 1,901,140
Warrants Issued and Outstanding    
Class Of Stock [Line Items]    
Common stock, reserved for future issuance 51,003 51,003
Stock Option Awards Issued and Outstanding    
Class Of Stock [Line Items]    
Common stock, reserved for future issuance 1,222,089 1,040,387
Authorized for grants under the 2016 Employee Stock Purchase Plan    
Class Of Stock [Line Items]    
Common stock, reserved for future issuance 100,000 100,000
Authorized for Grants under the 2016 Equity Incentive Plan    
Class Of Stock [Line Items]    
Common stock, reserved for future issuance 253,601 709,750
[1] Treasury stock in the amount of 52,200 are excluded from the table above.