Investment Securities (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 87,824,140	$ 76,269,804	$ 96,401,241
Gross Unrealized Gains	1,211,233	1,623,479	4,221,335
Gross Unrealized Losses	1,042,228	3,579,601	132,309
Fair Value	87,993,145us-gaap_AvailableForSaleSecurities	74,313,682us-gaap_AvailableForSaleSecurities	100,490,267us-gaap_AvailableForSaleSecurities
U.S. Treasury
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	7,946,530
Gross Unrealized Gains	5,843
Gross Unrealized Losses	23,883
Fair Value	7,928,490
U.S. Government agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	28,360	28,360	28,360
Gross Unrealized Gains	295,584	575,000
Gross Unrealized Losses			320
Fair Value	323,944	603,360	28,040
State and municipal
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	32,771,006	32,395,630	38,528,451
Gross Unrealized Gains	813,974	360,384	2,623,768
Gross Unrealized Losses	75,534	1,746,943	14,797
Fair Value	33,509,446	31,009,071	41,137,422
Corporate trust preferred
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	247,150	333,395	349,646
Gross Unrealized Gains
Gross Unrealized Losses	83,695	109,403	65,116
Fair Value	163,455	223,992	284,530
Mortgage-backed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	46,831,094	43,512,419	57,494,784
Gross Unrealized Gains	95,832	688,095	1,597,567
Gross Unrealized Losses	859,116	1,723,255	52,076
Fair Value	$ 46,067,810	$ 42,477,259	$ 59,040,275

Represents the amount of accumulated pre-tax unrealized gains before deducting pre-tax unrealized losses on investments in available-for-sale securities impacting investments.

No definition available.

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- Definition

Represents the amount of accumulated pre-tax unrealized loss before deducting pre-tax unrealized gain on investments in available-for-sale securities impacting investments.

+ References

No definition available.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 5

-Subparagraph (aa)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

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