Investment and Mortgage-Backed Securities, Available for Sale (Schedule of Temporarily Impaired Securities, Fair Value and Unrealized losses) (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Available For Sale, Percent of Unrealized Losses for Securities in a Continuous Loss Position, 12 Months or Longer	44.60%	67.80%
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 53,941,097	$ 67,300,430
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	24,530,755	47,048,976
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	78,471,852	114,349,406
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	590,054	452,533
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	474,369	952,678
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses	1,064,423	1,405,211
FHLB Securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	994,818
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	3,915,526	3,850,690
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	3,915,526	4,845,508
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	0	5,182
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	84,474	149,310
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses	84,474	154,492
Federal Farm Credit Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	1,985,022	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	5,667,994
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	1,985,022	5,667,994
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	14,978	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	0	82,006
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses	14,978	82,006
SBA Bonds
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	19,333,124	27,859,461
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	6,635,687	4,920,631
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	25,968,811	32,780,092
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	153,338	223,070
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	64,170	84,579
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses	217,508	307,649
Tax Exempt Municipal Bonds
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	16,235,174	3,605,319
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	799,429	1,710,586
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	17,034,603	5,315,905
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	366,102	16,039
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	8,294	29,041
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses	374,396	45,080
Mortgage-Backed Securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	16,387,777	34,840,832
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	13,180,113	30,899,075
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	29,567,890	65,739,907
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	55,636	208,242
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	317,431	607,742
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses	$ 373,067	$ 815,984