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4. Investment Securities (Details Narrative) - integer
Sep. 30, 2015
Dec. 31, 2014
Sep. 30, 2014
U.S. GSE debt securities      
Number of securities   10 7
Agency mortgage-backed securities (Agency MBS)      
Number of securities 5 4 9
Other investments      
Number of securities 2    
U.S. Government securities      
Number of securities     1