Stockholders' Equity (Deficit) (Details) - USD ($)		1 Months Ended	3 Months Ended	6 Months Ended
	Mar. 16, 2015	Dec. 31, 2013	Mar. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction		1,440,140
Sale of stock, price per share		$ 12.50		$ 0.19
Proceeds from issuance of private placement, gross				$ 13,000,000
Number of securities called by warrants	393,939
Exercise price of warrants	$ 10.750
Warrant liability				3,984,000	$ 5,826,000
Increase (decrease) to additional paid in capital resulting from warrants issued			$ (3,998,000)
Other expenses related to issuance of warrants			$ 213,000	213,000
Placement Agent [Member]
Class of Stock [Line Items]
Number of securities called by warrants	94,545	86,408
Exercise price of warrants	$ 10.750	$ 12.50
Fees paid to placement agent	$ 833,000
Warrant liability	$ 814,000
Other expenses related to issuance of warrants				$ 218,000
Private Placement [Member]
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction	1,575,758
Sale of stock, price per share	$ 8.250
Proceeds from issuance of private placement, gross	$ 13,000,000
Warrant liability	$ 4,210,000