v2.4.0.6
CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Class of Stock [Line Items]    
Preferred Stock, Value, Issued $ 0 $ 0
Preferred Stock, Par Value Per Share $ 0.01 $ 0.01
Preferred Stock, Shares Authorized 25,000,000 25,000,000
Preferred Stock, Shares Issued and Outstanding 0 0
Common Stock, Value 384 382
Common Class A [Member]
    
Class of Stock [Line Items]    
Common Stock, Value 312 310
Common Stock, Par Value Per Share $ 0.01 $ 0.01
Common Stock, Shares Authorized 200,000,000 200,000,000
Common Stock, Shares Issued and Outstanding 31,226,047 31,044,001
Common Class B [Member]
    
Class of Stock [Line Items]    
Common Stock, Value 72 72
Common Stock, Par Value Per Share $ 0.01 $ 0.01
Common Stock, Shares Authorized 75,000,000 75,000,000
Common Stock, Shares Issued and Outstanding 7,197,532 7,197,532
Common Class C Member
    
Class of Stock [Line Items]    
Common Stock, Value $ 0 $ 0
Common Stock, Par Value Per Share $ 0.01 $ 0.01
Common Stock, Shares Authorized 50,000,000 50,000,000
Common Stock, Shares Issued and Outstanding 0 0