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4. Investment Securities (Details) (USD $)
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2012
Available for sale Securities      
Amortized Cost - Available for sale Securities $ 45,773,774 $ 40,625,821 $ 72,779,543
Gross Unrealized Gains - Available for sale Securities 262,428 275,246 322,215
Gross Unrealized Losses - Available for sale Securities 25,889 15,008 65,820
Fair Value - Available for sale Securities 46,010,313 40,886,059 73,035,938
U.S. GSE debt securities
     
Available for sale Securities      
Amortized Cost - Available for sale Securities 38,706,702 33,552,376 65,701,558
Gross Unrealized Gains - Available for sale Securities 238,027 247,029 258,785
Gross Unrealized Losses - Available for sale Securities 25,471 13,936 59,195
Fair Value - Available for sale Securities 38,919,258 33,785,469 65,901,148
U.S. Government securities
     
Available for sale Securities      
Amortized Cost - Available for sale Securities 7,067,072 7,073,445 7,035,625
Gross Unrealized Gains - Available for sale Securities 24,401 28,217 21,730
Gross Unrealized Losses - Available for sale Securities 418 1,072 6,625
Fair Value - Available for sale Securities 7,091,055 7,100,590 7,050,730
U.S. GSE preferred stock
     
Available for sale Securities      
Amortized Cost - Available for sale Securities     42,360
Gross Unrealized Gains - Available for sale Securities     41,700
Gross Unrealized Losses - Available for sale Securities     0
Fair Value - Available for sale Securities     84,060
US States and Political Subdivisions Debt Securities [Member]
     
Held-to-Maturity Securities      
Amortized Cost - Held-to-Maturity 42,380,968 41,865,555 33,562,606
Gross Unrealized Gains - Held-to-Maturity 352,032 425,445 605,394
Gross Unrealized Losses - Held-to-Maturity 0 0 0
Fair Value - Held-to-Maturity $ 42,733,000 $ 42,291,000 $ 34,168,000