Stockholders' Equity and Redeemable Convertible Preferred Stock (Details 1) - Warrants	12 Months Ended
	Dec. 31, 2015 USD ($) $ / shares shares
Number of Shares
Outstanding at beginning of year | shares	40,452
Issued | shares	2,264,986
Expired | shares	(550)
Outstanding at end of year | shares	2,304,888
Exercisable at end of year | shares	2,304,888
Weighted Average Exercise Price
Outstanding at beginning of year | $ / shares	$ 260.34
Issued | $ / shares	4.87
Expired | $ / shares	5,700.00
Outstanding at end of year | $ / shares	32.94
Exercisable at end of year | $ / shares	$ 32.94
Total Intrinsic Value
Outstanding at beginning of year | $
Issued | $
Expired | $
Outstanding at end of year | $
Exercisable at end of year | $
Weighted Average Remaining Contractual Life (in years)
Outstanding at beginning of year	4 years 11 days
Issued	2 years 9 months 26 days
Outstanding at end of year	2 years 9 months 29 days
Exercisable at end of year	2 years 9 months 29 days