4. Investment Securities (Details 1) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Available for sale Securities
Amortized Cost
Due in one year or less, Amortized Cost	$ 6,611,216	$ 4,088,947	$ 3,003,306
Due from one to five years, Amortized Cost	28,838,536	36,536,874	43,502,742
Amortization Cost of Debt	35,449,752	40,625,821	46,506,048
Fair Value
Due in one year or less, fair value	6,621,105	4,104,324	3,013,511
Due from one to five years, fair value	28,830,966	36,781,735	43,943,930
Fair value of debt	35,452,071	40,886,059	46,957,441
Held to maturity Securities
Amortized Cost
Due in one year or less, Amortized Cost	29,860,867	32,741,241	40,302,625
Due from one to five years, Amortized Cost	3,649,393	3,849,709	4,041,285
Due from five to ten years, Amortized Cost	2,441,097	1,916,266	2,286,741
Due after ten years, Amortized Cost	3,267,428	3,358,339	3,435,002
Amortization Cost of Debt	39,218,785	41,865,555	50,065,653
Fair Value
Due in one year or less, fair value	29,861,000	32,741,000	40,303,000
Due from one to five years, fair value	3,747,000	3,956,000	4,183,000
Due from five to ten years, fair value	2,539,000	2,023,000	2,428,000
Due after ten years, fair value	3,463,000	3,571,000	3,717,000
Fair value of debt	$ 39,610,000	$ 42,291,000	$ 50,631,000