Severance Accrual	12 Months Ended
Dec. 31, 2016
Disclosure Text Block Supplement [Abstract]
Severance Accrual	During the year ended December 31, 2015, the Company recorded a net charge of $265,000 to general and administrative expenses relating to the resignation of the Company’s Chief Executive Officer. This net charge consisted of severance costs of $350,000, reduced by the effect of forfeitures of previously expensed unvested stock options and restricted stock unit awards that together totaled $85,000. A severance accrual of $350,000 was included in accrued compensation on the Company’s balance sheet as of December 31, 2015. This amount was paid in January 2016.

Severance Accrual

12 Months Ended

Dec. 31, 2016

Disclosure Text Block Supplement [Abstract]

During the year ended December 31, 2015, the Company recorded a net charge of $265,000 to general and administrative expenses relating to the resignation of the Company’s Chief Executive Officer. This net charge consisted of severance costs of $350,000, reduced by the effect of forfeitures of previously expensed unvested stock options and restricted stock unit awards that together totaled $85,000. A severance accrual of $350,000 was included in accrued compensation on the Company’s balance sheet as of December 31, 2015. This amount was paid in January 2016.