Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	Mar. 28, 2016	Jan. 25, 2016	Dec. 31, 2015	Dec. 31, 2014
Subsequent Event [Line Items]
Common stock, par value (in usd per share)			$ 0.04	$ 0.04
Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from rights offering of common stock	$ 1.2	$ 3.5
Issuance of common stock (shares)	10,000,000	39,026,839
Price per share of shares issued (in usd per share)		$ 0.09
Common stock, par value (in usd per share)	$ 0.04
Stock purchase agreement, lock-up period	18 months
Stock purchase agreement, minimum required ownership percentage of shares (as a percent)	5.00%