4. Investment Securities (Details 1) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Held-to-Maturity Securities
Fair Value - Held-to-Maturity	$ 26,055,000	$ 23,373,000	$ 42,234,000
States and political subdivisions [Member]
Held-to-Maturity Securities
Amortized Cost - Held-to-Maturity	25,738,769	22,966,558	41,810,945
Gross Unrealized Gains - Held-to-Maturity	316,231	406,442	423,055
Gross Unrealized Losses - Held-to-Maturity	0	0	0
Fair Value - Held-to-Maturity	$ 26,055,000	$ 23,373,000	$ 42,234,000