Summary of Significant Accounting Policies (Summary of Components of Other Comprehensive Earnings) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Summary of Significant Accounting Policies [Abstract]
Unrealized holding (losses) gains arising during the period, Pre-tax	$ 449,199	$ 22,196	$ 1,741,067	$ 2,917,129
Reclassification adjustment for (gains) losses included in net earnings, Pre-tax	1,833	119,170	(385,629)	(19,048)
Total other comprehensive (loss) earnings, Pre-tax	451,032	141,366	1,355,438	2,898,081
Unrealized holding (losses) gains arising during the period, Tax	(152,728)	(7,547)	(591,963)	(991,824)
Reclassification adjustment for (gains) losses included in net earnings, Tax	(624)	(40,518)	131,113	6,476
Total other comprehensive (loss) earnings, Tax	(153,352)	(48,065)	(460,850)	(985,348)
Unrealized holding (losses) gains arising during the period, After-tax	296,471	14,649	1,149,104	1,925,305
Reclassification adjustment for (gains) losses included in net earnings, After-tax	1,209	78,652	(254,516)	(12,572)
Total other comprehensive earnings (loss)	$ 297,680	$ 93,301	$ 894,588	$ 1,912,733