Stockholders' Equity and Redeemable Convertible Preferred Stock (Details 1) - Warrants - USD ($) None in scaling factor is -9223372036854775296	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Warrants
Outstanding at beginning of year	769,803
Issued
Outstanding at end of year	769,803	769,803
Weighted Average Exercise Price
Outstanding at beginning of year	$ 13.70
Issued
Outstanding at end of year	$ 13.70	$ 13.70
Total Intrinsic Value
Outstanding at beginning of year
Outstanding at end of year
Weighted Average Remaining Contractual Life (in years)
Weighted average remaining contractual life Outstanding	3 years 6 months 15 days	4 years 11 days