Consolidated Statements Of Comprehensive Income (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 1,726,124	$ 985,515
Other comprehensive income, before tax:
Amortization related to prior year service cost	1,097	554
Amortization of unrecognized loss	879	0
Unrealized gains on investments arising during the period	287,765	775,640
Reclassification adjustment for sales of securities included in net income	(8,803)	(765,272)
Reclassification adjustment for write-downs of securities included in net income	0	0
Other comprehensive income, before tax	280,938	10,922
Income tax expense related to postretirement health benefits	672	188
Income tax expense related to unrealized gains on investments arising during the period	103,538	269,804
Income tax benefit related to reclassification adjustment for sales of securities included in net income	(3,009)	(262,537)
Income tax expense related to reclassification adjustment for write-downs of securities included in net income	0	0
Net income tax expense on other comprehensive income	101,201	7,455
Other comprehensive income	179,737	3,467
Comprehensive Income	1,905,861	988,982
Comprehensive income attributable to redeemable noncontrolling interest	0	923
Comprehensive Income Attributable to the Company	$ 1,905,861	$ 989,905