Stockholders' Equity (Narrative) (Details) (USD $)	0 Months Ended	12 Months Ended
	Feb. 15, 2012	Dec. 31, 2010	Dec. 31, 2013	Dec. 31, 2014
Class of Stock
Preferred stock, shares authorized			50,000	50,000
Warrant to purchase common shares, expiration period		10 years
Warrant, common shares issuable upon exercise		313,505
Warrant to purchase common shares, exercise price		$ 18.66
Sale of preferred stock and warrant to U.S. Treasury, aggregate price		$ 39,000,000
Warrant repurchased from U.S. Treasury, value	1,200,000
Series A Preferred Stock
Class of Stock
Preferred stock, shares authorized		39,000
Liquidation preference per share, preferred stock		$ 1,000
Stock repurchased from U.S. Treasury, shares			39,000
Stock repurchased from U.S. Treasury, value			39,000,000
Common Stock
Class of Stock
Proceeds from Issuance of Private Placement				40,162,000
Private Placement [Member] | Common Stock
Class of Stock
Issuance of Private Placement				1,847,826
Proceeds from Issuance of Private Placement				$ 40,200,000
Sale of Stock, Price Per Share				$ 23.00