Stockholders' Equity - Preferred Stock (Details) (USD $)				12 Months Ended				12 Months Ended
	Jun. 30, 2013	Feb. 12, 2013	Feb. 19, 2014 Subsequent Event [Member]	Dec. 31, 2013 Series B [Member] vote_per_stock	Feb. 19, 2014 Series B [Member]	Jun. 30, 2013 Series B [Member]	Dec. 31, 2012 Series B [Member]	Dec. 31, 2013 Common Stock [Member]	Dec. 31, 2013 Series E [Member] vote_per_stock
Class of Stock [Line Items]
Voting rights per stock (vote per stock)				0.8					0.25
Shares convertible for each stock (shares)				0.8
Preferred stock, per share liquidation value (usd per share)				$ 29
Dividends declared per share (usd per share)				$ 2.90
Price per share on issuable shares (usd per share)								$ 3.77
Number of trading dates used to calculated price per share								20 days
Preferred stock, shares outstanding (shares)				44,258			44,258
Common stock dividends (shares)		75,530	30,833
Common stock dividends, declared and undeclared				$ 167,000	$ 218,000
Common stock dividends, undeclared				218,000		1,300,000	167,000
Preferred stock, per share redemption value (usd per share)									$ 10
Preferred stock, dividend rate									8.00%
Redemption of preferred stock	1,500,000
Cumulative dividends undeclared									$ 500,000