Non Purchased Loans - Impaired Loans (Details) - Non purchased loans and leases - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Impaired loans
Unpaid Contractual Principal Balance	$ 21,506	$ 26,382
Recorded Investment With Allowance	15,830	21,040
Recorded Investment With No Allowance	1,356	703
Total Recorded Investment	17,186	21,743
Related Allowance	1,304	2,567
Commercial, financial, agricultural
Impaired loans
Unpaid Contractual Principal Balance	2,612	3,043
Recorded Investment With Allowance	2,491	2,365
Recorded Investment With No Allowance	0	0
Total Recorded Investment	2,491	2,365
Related Allowance	223	138
Lease financing
Impaired loans
Unpaid Contractual Principal Balance	159	159
Recorded Investment With Allowance	159	159
Recorded Investment With No Allowance	0	0
Total Recorded Investment	159	159
Related Allowance	2	2
Real estate – construction
Impaired loans
Unpaid Contractual Principal Balance	150	578
Recorded Investment With Allowance	150	578
Recorded Investment With No Allowance	0	0
Total Recorded Investment	150	578
Related Allowance	1	4
Real estate – 1-4 family mortgage
Impaired loans
Unpaid Contractual Principal Balance	9,106	10,018
Recorded Investment With Allowance	8,111	8,169
Recorded Investment With No Allowance	0	703
Total Recorded Investment	8,111	8,872
Related Allowance	121	561
Real estate – commercial mortgage
Impaired loans
Unpaid Contractual Principal Balance	9,373	12,463
Recorded Investment With Allowance	4,817	9,652
Recorded Investment With No Allowance	1,356	0
Total Recorded Investment	6,173	9,652
Related Allowance	956	1,861
Installment loans to individuals
Impaired loans
Unpaid Contractual Principal Balance	106	121
Recorded Investment With Allowance	102	117
Recorded Investment With No Allowance	0	0
Total Recorded Investment	102	117
Related Allowance	$ 1	$ 1

Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524

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- References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

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