Loans and Allowance for Loan Losses - Schedule of Allowance for Loan Losses Methodology (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Beginning balance	$ 3,124,611	$ 3,032,242
Charge-offs	39,815	116,006
Recoveries	2,038	48,375
Net charge-offs	37,777	67,631
Provisions charged to operations	75,000	160,000
Individually evaluated for impairment	532,689	549,429
Collectively evaluated for impairment	2,629,145	2,575,182
Balance at end of period	3,161,834	3,124,611
Individually evaluated for impairment	8,106,126	8,071,512
Collectively evaluated for impairment	302,618,780	284,471,619
Balance at end of period	310,724,906	292,543,131
Commercial, Financial And Agricultural [Member]
Beginning balance	191,267	144,781
Charge-offs	34,000	103,387
Recoveries	855	28,303
Net charge-offs	33,145	75,084
Provisions charged to operations	74,700	121,570
Individually evaluated for impairment	8,926	12,021
Collectively evaluated for impairment	223,896	179,246
Balance at end of period	232,822	191,267
Individually evaluated for impairment	64,140	102,086
Collectively evaluated for impairment	71,156,584	70,897,337
Balance at end of period	71,220,724	70,999,423
Construction Real Estate [Member]
Beginning balance	1,043,083	1,043,083
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Provisions charged to operations	0	0
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,043,083	1,043,083
Balance at end of period	1,043,083	1,043,083
Individually evaluated for impairment	121,914	126,215
Collectively evaluated for impairment	28,273,766	25,873,080
Balance at end of period	28,395,680	25,999,295
Commercial Real Estate [Member]
Beginning balance	1,192,098	1,192,098
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Provisions charged to operations	0	0
Individually evaluated for impairment	240,254	245,472
Collectively evaluated for impairment	951,844	946,626
Balance at end of period	1,192,098	1,192,098
Individually evaluated for impairment	4,467,550	4,496,700
Collectively evaluated for impairment	96,328,167	87,236,112
Balance at end of period	100,795,717	91,732,812
Residential Real Estate [Member]
Beginning balance	420,189	381,891
Charge-offs	0	3,394
Recoveries	0	16,994
Net charge-offs	0	(13,600)
Provisions charged to operations	(2,354)	24,698
Individually evaluated for impairment	283,509	291,936
Collectively evaluated for impairment	134,326	128,253
Balance at end of period	417,835	420,189
Individually evaluated for impairment	2,393,279	2,281,439
Collectively evaluated for impairment	83,485,102	80,989,544
Balance at end of period	85,878,381	83,270,983
Agricultural Real Estate [Member]
Beginning balance	86,656	86,656
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Provisions charged to operations	0	0
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	86,656	86,656
Balance at end of period	86,656	86,656
Individually evaluated for impairment	1,056,565	1,061,826
Collectively evaluated for impairment	19,338,743	15,518,300
Balance at end of period	20,395,308	16,580,126
Consumer And Other [Member]
Beginning balance	191,318	183,733
Charge-offs	5,815	9,225
Recoveries	1,183	3,078
Net charge-offs	4,632	6,147
Provisions charged to operations	2,654	13,732
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	189,340	191,318
Balance at end of period	189,340	191,318
Individually evaluated for impairment	2,678	3,246
Collectively evaluated for impairment	4,036,418	3,957,246
Balance at end of period	$ 4,039,096	$ 3,960,492