Fair Value Measurements, Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		$ 492,930	$ 458,311	$ 492,930	$ 458,311	$ 495,396
Level 1 to Level 2 transfers		0	0	0	0
Level 2 to Level 1 transfers		0	0	0	0
Transfer into Level 3		0	0	0	0
Transfer out of Level 3		0	0	0	0
Unfunded commitments		700		700
Unrealized gain (losses) on investments		0	0	$ 0	0
Impaired Loans [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Percentage of selling costs				10.00%
ORE [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Percentage of selling costs				10.00%
Government Agency & Government-Sponsored Entities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale			3,052		3,052	3,039
US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		129,989	164,208	$ 129,989	164,208	164,514
US Government Agency SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		11,744	16,973	11,744	16,973	15,447
Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale	[1]	347,557	271,067	347,557	271,067	307,045
Recurring [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		492,930	458,311	492,930	458,311	495,396
Recurring [Member] | Government Agency & Government-Sponsored Entities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale			3,052		3,052	3,039
Recurring [Member] | US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		129,989	164,208	129,989	164,208	164,514
Recurring [Member] | US Government Agency SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		11,744	16,973	11,744	16,973	15,447
Recurring [Member] | Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		347,557	271,067	347,557	271,067	307,045
Recurring [Member] | Other [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		514	3,011	514	3,011	5,351
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		130,193	164,409	130,193	164,409	164,716
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Government Agency & Government-Sponsored Entities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale			0		0	0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		129,989	164,208	129,989	164,208	164,514
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | US Government Agency SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0	0	0	0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0	0	0	0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		204	201	204	201	202
Recurring [Member] | Other Observable Inputs (Level 2) [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		359,611	291,402	359,611	291,402	325,841
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | Government Agency & Government-Sponsored Entities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale			3,052		3,052	3,039
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0	0	0	0
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | US Government Agency SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		11,744	16,973	11,744	16,973	15,447
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		347,557	271,067	347,557	271,067	307,045
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | Other [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		310	310	310	310	310
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	2,500	0	2,500	4,839
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Government Agency & Government-Sponsored Entities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale			0		0	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0	0	0	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | US Government Agency SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0	0	0	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0	0	0	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	$ 2,500	0	$ 2,500	$ 4,839
Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | SBA Loan Fund Investment Measured at NAV [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		$ 3,126		$ 3,126

[1] All Mortgage Backed Securities consist of securities collateralized by residential real estate and were issued by an agency or government sponsored entity of the U.S. government.