4. Investment Securities (Details 2) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
Less than 12 months
Fair Value	$ 13,449,375	$ 9,768,131	$ 26,540,790
Unrealized Loss	25,889	15,008	65,820
U.S. GSE debt securities
Less than 12 months
Fair Value	11,398,359	8,715,492	23,532,511
Unrealized Loss	25,471	13,936	59,195
U.S. Government securities
Less than 12 months
Fair Value	2,051,016	1,052,639	3,008,279
Unrealized Loss	$ 418	$ 1,072	$ 6,625