Investment Securities (Held-to-maturity Securities by Maturities) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, maturing within 1 year, amortized cost	$ 0
Debt securities, maturing 1 to 5 years, amortized cost	3,562
Debt securities, maturing 5 to 10 years, amortized cost	6,194
Debt securities, maturing over 10 years, amortized cost	170,669
Amortized Cost	180,425	$ 66,518
Debt securities, maturing within 1 year, fair value	0
Debt securities, maturing 1 to 5 years, fair value	3,809
Debt securities, maturing 5 to 10 years, fair value	6,763
Debt securities, maturing over 10 years, fair value	169,315
Fair Value	$ 179,887	68,082
Held-to-maturity securities, maturing within 1 year, average yield	0.00%
Held-to-maturity securities, maturing 1 to 5 years, average yield	0.23%
Held-to-maturity securities, maturing 6 to 10 years, average yield	3.08%
Held-to-maturity securities, maturing over 10 years, average yield	2.13%
Held-to-maturity securities, total average yield	2.12%
Debt Securities, Held-to-maturity, Allowance for Credit Loss	$ (201)	(60)
States and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, maturing within 1 year, amortized cost	0
Debt securities, maturing 1 to 5 years, amortized cost	989
Debt securities, maturing 5 to 10 years, amortized cost	2,511
Debt securities, maturing over 10 years, amortized cost	98,925
Amortized Cost	102,425
Debt securities, maturing within 1 year, fair value	0
Debt securities, maturing 1 to 5 years, fair value	1,141
Debt securities, maturing 5 to 10 years, fair value	2,812
Debt securities, maturing over 10 years, fair value	97,787
Fair Value	101,740	35,484
Debt Securities, Held-to-maturity, Allowance for Credit Loss	(201)	(60)
Residential mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, maturing within 1 year, amortized cost	0
Debt securities, maturing 1 to 5 years, amortized cost	2,211
Debt securities, maturing 5 to 10 years, amortized cost	0
Debt securities, maturing over 10 years, amortized cost	21,856
Amortized Cost	24,067
Debt securities, maturing within 1 year, fair value	0
Debt securities, maturing 1 to 5 years, fair value	2,302
Debt securities, maturing 5 to 10 years, fair value	0
Debt securities, maturing over 10 years, fair value	22,441
Fair Value	24,743	26,742
Commercial mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, maturing within 1 year, amortized cost	0
Debt securities, maturing 1 to 5 years, amortized cost	362
Debt securities, maturing 5 to 10 years, amortized cost	3,683
Debt securities, maturing over 10 years, amortized cost	19,785
Amortized Cost	23,830
Debt securities, maturing within 1 year, fair value	0
Debt securities, maturing 1 to 5 years, fair value	366
Debt securities, maturing 5 to 10 years, fair value	3,951
Debt securities, maturing over 10 years, fair value	19,642
Fair Value	23,959	$ 5,856
Agency Securities
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, maturing within 1 year, amortized cost	0
Debt securities, maturing 1 to 5 years, amortized cost	0
Debt securities, maturing 5 to 10 years, amortized cost	0
Debt securities, maturing over 10 years, amortized cost	30,103
Amortized Cost	30,103
Debt securities, maturing within 1 year, fair value	0
Debt securities, maturing 1 to 5 years, fair value	0
Debt securities, maturing 5 to 10 years, fair value	0
Debt securities, maturing over 10 years, fair value	29,445
Fair Value	$ 29,445

Held-to-maturity Securities, Debt Maturities, Average Yield

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- Definition

Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447

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-Publisher FASB
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Weighted average yield of investment in debt security measured at amortized cost (held-to-maturity), maturing in sixth through tenth rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

+ References

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Weighted average yield of investment in debt security measured at amortized cost (held-to-maturity), maturing in second through fifth rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Weighted average yield of investment in debt security measured at amortized cost (held-to-maturity), maturing after tenth fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Weighted average yield of investment in debt security measured at amortized cost (held-to-maturity), maturing in next rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities 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), with single maturity date and allocated without single maturity date, maturing in next rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing after tenth rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in second through fifth rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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

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Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing after rolling tenth fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in second through fifth rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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