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Stockholders' Equity (Details) - $ / shares
 9 Months Ended
May 05, 2017
May 03, 2017
Sep. 30, 2017
Apr. 19, 2017
Dec. 31, 2016
Class of Stock [Line Items]          
Reverse stock split, price per share       $ 1.00  
Reverse stock split, description As a result of the reverse stock split, every 10 shares of issued and outstanding common stock were automatically combined into one issued and outstanding share of common stock.

The Company’s stockholders approved, (i) an amendment to the Company’s Eighth Amended and Restated Certificate of Incorporation (as amended, the “Certificate of Incorporation”) to effect a reverse stock split of the Company’s common stock in a range of 1-for-10 to 1-for-20, such ratio to be determined in the sole discretion of the Board; and (ii) an amendment to the Certificate of Incorporation to decrease the Company’s authorized number of shares of common stock to three times the number of shares of the Company’s common stock outstanding immediately following the reverse stock split, rounded up to the nearest 100,000 shares. On May 3, 2017, following the annual meeting, the Board determined to effect the reverse stock split at a ratio of 1-for-10, and the Company filed with the Secretary of State of the State of Delaware a Certificate of Amendment to (a) implement the reverse stock split and (b) to reduce the number of authorized shares of common stock from 40,000,000 to 8,200,000, consequently reducing the number of total authorized shares from 45,000,000 to 13,200,000. The amendment, reverse stock split and reduction in authorized shares were effective on May 5, 2017.

      
Total number of authorized shares     13,200,000    
Common stock, shares authorized     8,200,000   8,200,000
Reverse stock split per share, description     Stockholders received cash in lieu of any fractional shares resulting from the reverse stock split in a proportionate amount equal to $0.78 per pre-split share based on the average closing price of the Common Stock for the 30 trading days immediately preceding the effective date of the reverse stock split.    
Preferred stock, shares authorized     5,000,000   5,000,000
Minimum [Member]          
Class of Stock [Line Items]          
Common stock, shares authorized   13,200,000      
Minimum [Member] | Common Stock [Member]          
Class of Stock [Line Items]          
Common stock, shares authorized   8,200,000      
Maximum [Member]          
Class of Stock [Line Items]          
Common stock, shares authorized   45,000,000      
Maximum [Member] | Common Stock [Member]          
Class of Stock [Line Items]          
Common stock, shares authorized   40,000,000      
Restricted stock units [Member]          
Class of Stock [Line Items]          
Exercise of outstanding common stock options and vesting of restricted stock units     159,102    
Common stock reserved for future grants of stock options and restricted stock units     278,956