Annual report pursuant to Section 13 and 15(d)

Fair Value Fair Value, Option, Quantitative Disclosures - changes included in net income (Details)

v2.4.0.6
Fair Value Fair Value, Option, Quantitative Disclosures - changes included in net income (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2010
Dec. 31, 2009
Sep. 30, 2009
Jun. 30, 2009
Mar. 31, 2009
Dec. 31, 2011
Fair Value, Option, Quantitative Disclosures [Line Items]                          
Fair Value, Option, Interest Income (Expense) $ 2 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0  
Fair Value, Option, Changes in Fair Value, Gain (Loss)                         0
Fair Value, Option, Other Revenue, Net                         0
Fair Value, Option, Total Income                         2
Fair Value, Option, Credit Risk, Gains (Losses) on Assets                         0
Loans Receivable [Member]
                         
Fair Value, Option, Quantitative Disclosures [Line Items]                          
Fair Value, Option, Interest Income (Expense)                         2
Fair Value, Option, Changes in Fair Value, Gain (Loss)                         0
Fair Value, Option, Other Revenue, Net                         0
Fair Value, Option, Total Income                         2
Fair Value, Option, Credit Risk, Gains (Losses) on Assets                         $ 0