Loans - Schedule of Risk Category of Loans by Class of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable Recorded Investment [Line Items]
Total	$ 916,184	$ 877,843
Commercial Real Estate
Financing Receivable Recorded Investment [Line Items]
Total	547,048	505,229
SBA Loans-Real Estate
Financing Receivable Recorded Investment [Line Items]
Total	121,308	117,993
SBA Loans—Non-Real Estate
Financing Receivable Recorded Investment [Line Items]
Total	9,875	9,932
Commercial and Industrial
Financing Receivable Recorded Investment [Line Items]
Total	107,105	114,297
Home Mortgage
Financing Receivable Recorded Investment [Line Items]
Total	128,381	127,806
Consumer
Financing Receivable Recorded Investment [Line Items]
Total	2,467	2,586
Pass
Financing Receivable Recorded Investment [Line Items]
Total	911,932	874,254
Pass | Commercial Real Estate
Financing Receivable Recorded Investment [Line Items]
Total	547,048	505,229
Pass | SBA Loans-Real Estate
Financing Receivable Recorded Investment [Line Items]
Total	119,027	115,993
Pass | SBA Loans—Non-Real Estate
Financing Receivable Recorded Investment [Line Items]
Total	9,810	9,859
Pass | Commercial and Industrial
Financing Receivable Recorded Investment [Line Items]
Total	105,199	112,781
Pass | Home Mortgage
Financing Receivable Recorded Investment [Line Items]
Total	128,381	127,806
Pass | Consumer
Financing Receivable Recorded Investment [Line Items]
Total	2,467	2,586
Special Member
Financing Receivable Recorded Investment [Line Items]
Total	16	16
Special Member | SBA Loans—Non-Real Estate
Financing Receivable Recorded Investment [Line Items]
Total	16	16
Substandard
Financing Receivable Recorded Investment [Line Items]
Total	4,236	3,573
Substandard | SBA Loans-Real Estate
Financing Receivable Recorded Investment [Line Items]
Total	2,281	2,000
Substandard | SBA Loans—Non-Real Estate
Financing Receivable Recorded Investment [Line Items]
Total	49	57
Substandard | Commercial and Industrial
Financing Receivable Recorded Investment [Line Items]
Total	$ 1,906	$ 1,516