Securities - Amortized cost and approximate fair values, together with gross unrealized gains and losses, of securities (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	$ 95,606,893	$ 111,086,058
Available-for-sale securities, gross unrealized gains	1,957,062	1,387,292
Available-for-sale securities, gross unrealized losses	(879,058)	(3,488,753)
Available-for-sale securities, fair value	96,684,897us-gaap_AvailableForSaleSecurities	108,984,597us-gaap_AvailableForSaleSecurities
U.S. Government and federal agencies
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	10,031,683	10,710,675
Available-for-sale securities, gross unrealized gains	65,328	114,936
Available-for-sale securities, gross unrealized losses	(138,738)	(405,535)
Available-for-sale securities, fair value	9,958,273	10,420,076
Mortgage-backed securities (Government-sponsored enterprises - residential)
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	41,196,695	49,486,337
Available-for-sale securities, gross unrealized gains	433,757	219,222
Available-for-sale securities, gross unrealized losses	(210,531)	(1,359,904)
Available-for-sale securities, fair value	41,419,921	48,345,655
Municipal bonds
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	44,378,515	50,889,046
Available-for-sale securities, gross unrealized gains	1,457,977	1,053,134
Available-for-sale securities, gross unrealized losses	(529,789)	(1,723,314)
Available-for-sale securities, fair value	$ 45,306,703	$ 50,218,866

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

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)

-URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 5

-Subparagraph (aa)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-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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- Definition

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)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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