Net Income (Loss) Per Common Share (Narrative) (Details) - $ / shares	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Dec. 31, 2014
Class of Warrant or Right [Line Items]
Warrant to purchase shares of common stock excluded	1,498,780	60,013,498	12,983,776	60,013,498
Common Stock [Member]
Class of Warrant or Right [Line Items]
Warrant to purchase shares of common stock excluded	2,206,496
Weighted Average [Member]
Class of Warrant or Right [Line Items]
Weighted average exercise price for warrants to purchase common stock	$ 9.51		$ 9.51	$ 9.51