Business Combinations - Schedule of Business Acquisition, Contingent Consideration -- BankGreenville (Details) - USD ($) $ in Thousands	Jul. 31, 2013	Oct. 27, 2015	Jul. 31, 2014
Assets
Core deposit intangibles			$ 0
BankGreenville
Liabilities
Contingent liability, performance period	24 months
Estimate of additional amount to be paid to shareholders after 24 months	$ 8,000
Actual amount paid to shareholders	484	$ 484
BankGreenville | As Recorded by BankGreenville
Assets
Cash and cash equivalents	10,348
Securities available for sale	34,345
Loans, net of allowance	51,622
FHLB Stock	447
REO	2,317
Premises and equipment, net	2,458
Accrued interest receivable	429
Deferred tax asset	0
Other assets	214
Core deposit intangibles	0
Total assets acquired	102,180
Liabilities
Deposits	88,906
Other borrowings	4,700
Other liabilities	511
Total liabilities assumed	94,117
Net assets acquired	8,063
BankGreenville | Fair Value and Other Merger Related Adjustments
Assets
Cash and cash equivalents	0
Securities available for sale	0
Loans, net of allowance	(3,792)
FHLB Stock	0
REO	(168)
Premises and equipment, net	(117)
Accrued interest receivable	0
Deferred tax asset	2,470
Other assets	0
Core deposit intangibles	530
Total assets acquired	(1,077)
Liabilities
Deposits	201
Other borrowings	34
Other liabilities	0
Total liabilities assumed	235
Net assets acquired	(1,312)
BankGreenville | As Recorded by the Company
Consideration Paid
Cash paid as deposit premium	7,823
Repayment of BankGreenville preferred stock	1,050
Contingent cash consideration	680
Total consideration	9,553
Assets
Cash and cash equivalents	10,348
Securities available for sale	34,345
Loans, net of allowance	47,830
FHLB Stock	447
REO	2,149
Premises and equipment, net	2,341
Accrued interest receivable	429
Deferred tax asset	2,470
Other assets	214
Core deposit intangibles	530
Total assets acquired	101,103
Liabilities
Deposits	89,107
Other borrowings	4,734
Other liabilities	511
Total liabilities assumed	94,352
Net assets acquired	6,751
Goodwill	$ 2,802