Subsequent Events (Details) - USD ($)		3 Months Ended	9 Months Ended
	Nov. 05, 2015	Sep. 30, 2015	Sep. 30, 2015
Options granted in stock option grant			547,181
Exercise price of options granted		$ 8.72	$ 8.72
Vesting period of options granted			4 years
Subsequent Event [Member]
Vesting description of options granted	25% of the shares subject to the option will vest one year following the date of grant, and thereafter the remaining shares will vest in equal monthly installments over the following 36 months.
Subsequent Event [Member] | Class II Director [Member]
Options granted in stock option grant	16,200
Exercise price of options granted	$ 5.65
Annual retainer for non-employee director	$ 40,000
Subsequent Event [Member] | Class III Director [Member]
Options granted in stock option grant	16,200
Exercise price of options granted	$ 5.65
Annual retainer for non-employee director	$ 40,000
Subsequent Event [Member] | Share-based Compensation Award, Tranche One [Member]
Percent of shares vesting	25.00%
Vesting period of options granted	1 year
Subsequent Event [Member] | Share-based Compensation Award, Tranche Two [Member]
Vesting description of options granted	remaining shares will vest in equal monthly installments
Vesting period of options granted	36 months