Stockholders' Equity (Deficit) - Employee Stock Purchase Plan (Details) (USD $)	0 Months Ended
	Apr. 16, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period (in years)	90 days
2014 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance (shares)	1,500,000
Annual compensation limit percentage, employee stock purchase plan	10.00%
Annual compensation limit, employee stock purchase plan	$ 21,250
Shares issuance limit per offering period, employee stock purchase plan	20,000
Fair market value of shares available for issuance	85.00%