Investment Securities - Portfolio of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 33,219	$ 37,759
Unrealized Gains	285	1
Unrealized Losses	141	786
Fair Value	33,363	36,974
State, county, and municipal securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	1,659	1,977
Unrealized Gains	4	1
Unrealized Losses	1	10
Fair Value	1,662	1,968
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	31,560	35,782
Unrealized Gains	281	0
Unrealized Losses	140	776
Fair Value	$ 31,701	$ 35,006

Amount of investment in debt security measured at amortized cost (held-to-maturity).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

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-Name Accounting Standards Codification
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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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