Investment Securities - Available for Sale (Details) $ in Thousands	Jun. 30, 2023 USD ($) security	Dec. 31, 2022 USD ($) security	Jun. 30, 2022 USD ($) security
Available-For-Sale Securities
Available-For-Sale Securities, at Amortized Cost	$ 606,275	$ 639,095	$ 626,567
Gross Unrealized Gains	3	80	43
Gross Unrealized Losses	(62,570)	(65,680)	(43,869)
Available-for-Sale at Fair Value	543,708	573,495	582,741
Maturities of Debt Securities, at Amortized Cost:
Within One Year	15,730
From 1 - 5 Years	402,541
From 5 - 10 Years	188,004
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	15,366
From 1 - 5 Years	368,884
From 5 - 10 Years	159,458
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	54,360	250,558	423,811
12 Months or Longer	488,953	293,555	152,449
Total	$ 543,313	$ 544,113	$ 576,260
Number of Securities in a Continuous Loss Position | security	180	174	160
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 1,041	$ 22,066	$ 26,722
12 Months or Longer	61,529	43,614	17,147
Total	62,570	65,680	43,869
Collateral Pledged
Available-For-Sale Securities
Available-For-Sale Securities, Pledged as Collateral, at Fair Value	362,707	308,266	329,371
U.S. Government & Agency Obligations
Available-For-Sale Securities
Available-For-Sale Securities, at Amortized Cost	190,000	190,000	165,000
Gross Unrealized Gains	0	15	0
Gross Unrealized Losses	(13,984)	(14,816)	(9,525)
Available-for-Sale at Fair Value	176,016	175,199	155,475
Maturities of Debt Securities, at Amortized Cost:
Within One Year	15,000
From 1 - 5 Years	175,000
From 5 - 10 Years	0
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	14,660
From 1 - 5 Years	161,356
From 5 - 10 Years	0
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	29,509	66,690	72,817
12 Months or Longer	146,505	93,493	82,657
Total	$ 176,014	$ 160,183	$ 155,474
Number of Securities in a Continuous Loss Position | security	25	23	22
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 490	$ 3,310	$ 2,183
12 Months or Longer	13,494	11,506	7,342
Total	13,984	14,816	9,525
U.S. Government & Agency Obligations | Agency Securities
Available-For-Sale Securities
Available-For-Sale Securities, at Amortized Cost	190,000	190,000	165,000
Available-for-Sale at Fair Value	176,016	175,199	155,475
State and Municipal Obligations
Available-For-Sale Securities
Available-For-Sale Securities, at Amortized Cost	280	340	340
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	0	0	0
Available-for-Sale at Fair Value	280	340	340
Maturities of Debt Securities, at Amortized Cost:
Within One Year	0
From 1 - 5 Years	0
From 5 - 10 Years	280
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	0
From 1 - 5 Years	0
From 5 - 10 Years	280
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	0	0	0
12 Months or Longer	0	0	0
Total	$ 0	$ 0	$ 0
Number of Securities in a Continuous Loss Position | security	0	0	0
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 0	$ 0	$ 0
12 Months or Longer	0	0	0
Total	0	0	0
Mortgage- Backed Securities
Available-For-Sale Securities
Available-For-Sale Securities, at Amortized Cost	414,995	447,755	460,227
Gross Unrealized Gains	3	65	43
Gross Unrealized Losses	(48,386)	(50,664)	(34,144)
Available-for-Sale at Fair Value	366,612	397,156	426,126
Maturities of Debt Securities, at Amortized Cost:
Within One Year	730
From 1 - 5 Years	227,541
From 5 - 10 Years	186,724
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	706
From 1 - 5 Years	207,528
From 5 - 10 Years	158,378
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	24,851	183,868	350,994
12 Months or Longer	341,648	199,262	68,992
Total	$ 366,499	$ 383,130	$ 419,986
Number of Securities in a Continuous Loss Position | security	154	150	137
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 551	$ 18,756	$ 24,539
12 Months or Longer	47,835	31,908	9,605
Total	48,386	50,664	34,144
Mortgage- Backed Securities | US Government Agencies Debt Securities
Available-For-Sale Securities
Available-For-Sale Securities, at Amortized Cost	7,573	7,934	8,533
Available-for-Sale at Fair Value	7,048	7,433	8,292
Mortgage- Backed Securities | US Government-sponsored Enterprises Debt Securities
Available-For-Sale Securities
Available-For-Sale Securities, at Amortized Cost	407,422	439,821	451,694
Available-for-Sale at Fair Value	359,564	389,723	417,834
Corporate and Other Debt Securities
Available-For-Sale Securities
Available-For-Sale Securities, at Amortized Cost	1,000	1,000	1,000
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(200)	(200)	(200)
Available-for-Sale at Fair Value	800	800	800
Maturities of Debt Securities, at Amortized Cost:
Within One Year	0
From 1 - 5 Years	0
From 5 - 10 Years	1,000
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	0
From 1 - 5 Years	0
From 5 - 10 Years	800
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	0	0	0
12 Months or Longer	800	800	800
Total	$ 800	$ 800	$ 800
Number of Securities in a Continuous Loss Position | security	1	1	1
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 0	$ 0	$ 0
12 Months or Longer	200	200	200
Total	$ 200	$ 200	$ 200