Consolidated Balance Sheets (Parentheticals) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Common Stock Shares Outstanding		15,767,417
Common Class A [Member]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock Shares Outstanding	16,072,140	15,287,998
Common Class B [Member]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	1,000	1,000
Common Stock Shares Outstanding	0	0
Series A Preferred Stock [Member]
Preferred Stock Par Or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock Liquidation Preference Value	$ 25	$ 25
Preferred Stock Shares Authorized	1,000,000	1,000,000
Preferred Stock Shares Outstanding	0	0
Series B Preferred Stock [Member]
Preferred Stock Par Or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock Liquidation Preference Value	$ 10,000	$ 10,000
Preferred Stock Shares Authorized	1,000,000	1,000,000
Preferred Stock Shares Outstanding	1,649	1,649
Preferred Stock Dividend Rate Percentage	6.30%	6.30%