Investment Securities, Available-for-sale Securities, Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	$ 430,780	$ 429,360
Gross Unrealized Gains	6,341	9,928
Gross Unrealized Losses	2,569	217
Fair Value	434,552	439,071
U. S. Government Sponsored Enterprises [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	59,974	20,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	225	32
Fair Value	59,749	19,968
State and Political Subdivisions [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	48	103
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	48	103
Mortgage-Backed Securities and Collateralized Mortgage Obligations - Residential [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	290,508	308,432
Gross Unrealized Gains	5,095	7,749
Gross Unrealized Losses	2,018	23
Fair Value	293,585	316,158
Corporate Bonds [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	45,914	59,185
Gross Unrealized Gains	327	916
Gross Unrealized Losses	326	162
Fair Value	45,915	59,939
Small Business Administration-Guaranteed Participation Securities [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	33,650	40,955
Gross Unrealized Gains	919	1,262
Gross Unrealized Losses	0	0
Fair Value	34,569	42,217
Other [Member]
Amortized cost and fair value of the securities available for sale [Abstract]
Amortized Cost	686	685
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	0
Fair Value	$ 686	$ 686