Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Common Stock Unit Activity (Details)

v3.3.0.814
Stock-based Compensation - Common Stock Unit Activity (Details)
9 Months Ended
Sep. 30, 2015
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Nonvested, beginning balance (in shares) 23,984
Vested (in shares) (18,006)
Nonvested, ending balance (in shares) 5,978
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Nonvested, beginning balance (in dollars per share) | $ / shares $ 1.37
Vested (in dollars per share) | $ / shares 1.37
Nonvested, ending balance (in dollars per share) | $ / shares $ 1.37