Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2014
Income Tax [Line Items]
Income Tax Expense (Benefit)	$ 2,400	$ 0
Operating Loss Carryforwards	39,300,000	11,400,000
Operatng Loss Carry Forwords Expiration Description	expiring beginning in 2021 for federal and 2015 for California
Deferred Tax Assets Net Operating Income Loss Carry Forwards			20,900,000
Liability for Uncertain Tax Positions, Current	$ 0