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Loans and Allowance for Loan Losses - Summarizes of All COVID19 Loan Payment Deferment and the Percentage of Loans (Details) - COVID-19 [Member] $ in Thousands	Apr. 30, 2020 USD ($) DeferredLoan	Mar. 31, 2020
Financing Receivable Modifications [Line Items]
Percentage of Portfolio Balance as of March 31, 2020		20.90%
Subsequent Event [Member]
Financing Receivable Modifications [Line Items]
Number of Loans Deferred | DeferredLoan	1,433
Principal Balance of Loans Deferred	$ 114,990
Principal and Interest Deferments	81,929
Principal Only Deferments	$ 33,061
Construction, Land Development and Other Land Loans [Member]
Financing Receivable Modifications [Line Items]
Percentage of Portfolio Balance as of March 31, 2020		52.20%
Construction, Land Development and Other Land Loans [Member] | Subsequent Event [Member]
Financing Receivable Modifications [Line Items]
Number of Loans Deferred | DeferredLoan	3
Principal Balance of Loans Deferred	$ 16,666
Principal and Interest Deferments	9,513
Principal Only Deferments	$ 7,153
Secured by 1-4 Family Residential Properties [Member]
Financing Receivable Modifications [Line Items]
Percentage of Portfolio Balance as of March 31, 2020		11.50%
Secured by 1-4 Family Residential Properties [Member] | Subsequent Event [Member]
Financing Receivable Modifications [Line Items]
Number of Loans Deferred | DeferredLoan	71
Principal Balance of Loans Deferred	$ 11,549
Principal and Interest Deferments	9,368
Principal Only Deferments	$ 2,181
Secured By Multi family Residential Properties [Member]
Financing Receivable Modifications [Line Items]
Percentage of Portfolio Balance as of March 31, 2020		55.60%
Secured By Multi family Residential Properties [Member] | Subsequent Event [Member]
Financing Receivable Modifications [Line Items]
Number of Loans Deferred | DeferredLoan	11
Principal Balance of Loans Deferred	$ 24,482
Principal and Interest Deferments	5,421
Principal Only Deferments	$ 19,061
Secured By Non-farm Non residential Properties [Member]
Financing Receivable Modifications [Line Items]
Percentage of Portfolio Balance as of March 31, 2020		31.90%
Secured By Non-farm Non residential Properties [Member] | Subsequent Event [Member]
Financing Receivable Modifications [Line Items]
Number of Loans Deferred | DeferredLoan	53
Principal Balance of Loans Deferred	$ 49,851
Principal and Interest Deferments	45,575
Principal Only Deferments	$ 4,276
Commercial and Industrial Loans [Member]
Financing Receivable Modifications [Line Items]
Percentage of Portfolio Balance as of March 31, 2020		2.00%
Commercial and Industrial Loans [Member] | Subsequent Event [Member]
Financing Receivable Modifications [Line Items]
Number of Loans Deferred | DeferredLoan	12
Principal Balance of Loans Deferred	$ 1,645
Principal and Interest Deferments	1,255
Principal Only Deferments	$ 390
Consumer Portfolio Segment [Member] | Direct Consumer [Member]
Financing Receivable Modifications [Line Items]
Percentage of Portfolio Balance as of March 31, 2020		10.40%
Consumer Portfolio Segment [Member] | Direct Consumer [Member] | Subsequent Event [Member]
Financing Receivable Modifications [Line Items]
Number of Loans Deferred | DeferredLoan	830
Principal Balance of Loans Deferred	$ 3,774
Principal and Interest Deferments	$ 3,774
Consumer Portfolio Segment [Member] | Branch Retail [Member]
Financing Receivable Modifications [Line Items]
Percentage of Portfolio Balance as of March 31, 2020		8.90%
Consumer Portfolio Segment [Member] | Branch Retail [Member] | Subsequent Event [Member]
Financing Receivable Modifications [Line Items]
Number of Loans Deferred | DeferredLoan	283
Principal Balance of Loans Deferred	$ 2,825
Principal and Interest Deferments	$ 2,825
Consumer Portfolio Segment [Member] | Indirect Sales [Member]
Financing Receivable Modifications [Line Items]
Percentage of Portfolio Balance as of March 31, 2020		6.00%
Consumer Portfolio Segment [Member] | Indirect Sales [Member] | Subsequent Event [Member]
Financing Receivable Modifications [Line Items]
Number of Loans Deferred | DeferredLoan	170
Principal Balance of Loans Deferred	$ 4,198
Principal and Interest Deferments	$ 4,198

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