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Loans and Allowance for Loan Losses (Details 3) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 5,105,000	$ 4,354,000
Charged-off loans	(276,000)	(306,000)
Recoveries of loans charged off	248,000	269,000
Provision (reallocation) charged to operating expense	782,687	787,545
Ending balance	5,860,000	5,105,000
Commercial Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,369,000	1,906,000
Charged-off loans	0	0
Recoveries of loans charged off	8,000	45,000
Provision (reallocation) charged to operating expense	88,000	418,000
Ending balance	2,465,000	2,369,000
Consumer Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,382,000	1,015,000
Charged-off loans	(111,000)	(102,000)
Recoveries of loans charged off	99,000	76,000
Provision (reallocation) charged to operating expense	226,000	393,000
Ending balance	1,596,000	1,382,000
Construction and Land Development [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	717,000	627,000
Charged-off loans	0	(14,000)
Recoveries of loans charged off	13,000	22,000
Provision (reallocation) charged to operating expense	(209,000)	82,000
Ending balance	521,000	717,000
Commercial and Industrial [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	520,000	777,000
Charged-off loans	(24,000)	(35,000)
Recoveries of loans charged off	67,000	58,000
Provision (reallocation) charged to operating expense	499,000	(280,000)
Ending balance	1,062,000	520,000
Consumer and Other [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	117,000	29,000
Charged-off loans	(141,000)	(155,000)
Recoveries of loans charged off	61,000	68,000
Provision (reallocation) charged to operating expense	179,000	175,000
Ending balance	$ 216,000	$ 117,000

X

- Definition

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(4)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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Amount of expense related to estimated loss from loan and lease transactions.

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