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Securities (Details 1) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Summarizes amortized cost and estimated fair values of securities held for investment  
Amortized Cost $ 16,099
Gross Unrealized Gains 226
Gross Unrealized Losses (8)
Estimated Fair Value 16,317
Mortgage backed securities [Member]
 
Summarizes amortized cost and estimated fair values of securities held for investment  
Amortized Cost 740
Gross Unrealized Gains 56
Gross Unrealized Losses   
Estimated Fair Value 796
States and political subdivisions [Member]
 
Summarizes amortized cost and estimated fair values of securities held for investment  
Amortized Cost 15,359
Gross Unrealized Gains 170
Gross Unrealized Losses (8)
Estimated Fair Value $ 15,521