The Company and Basis of Presentation (Details 2)	12 Months Ended	0 Months Ended
	Dec. 31, 2013	Jul. 02, 2013	Jul. 11, 2013	Jul. 11, 2013	Dec. 31, 2014	Jun. 30, 2013
Movement in Company's capitalization
Balance (in shares)		14,607,413	15,357,413		20,352,876	396,414
Balance (in shares)	15,357,413	14,607,413	15,357,413	15,357,413	20,352,876	396,414
Series A preferred stock
Movement in Company's capitalization
Conversion of preferred stock into common stock upon closing of IPO (in shares)	(57,598,092)
Series A-1 preferred stock
Movement in Company's capitalization
Conversion of preferred stock into common stock upon closing of IPO (in shares)	(6,750,000)
Initial Public Offering | Series A preferred stock
Movement in Company's capitalization
Conversion of preferred stock into common stock upon closing of IPO (in shares)		8,244,781
Initial Public Offering | Series A-1 preferred stock
Movement in Company's capitalization
Conversion of preferred stock into common stock upon closing of IPO (in shares)		966,218
Initial Public Offering | Common stock
Movement in Company's capitalization
Conversion of preferred stock into common stock upon closing of IPO (in shares)		9,210,999
Common stock sold (in shares)		5,000,000
Over-allotment option
Movement in Company's capitalization
Common stock sold (in shares)			750,000	750,000