Investment Securities (Unrealized Gains and Losses by Category) (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Available For Sale Securities Continuous Unrealized Loss Position Amortized Cost [Abstract]
Available for sale - Amortized cost - less than 12 month	$ 109,088,000	$ 39,732,000
Available for sale - Amortized cost - more than 12 month	0	0
Total Available for Sale Amortization cost	109,088,000	39,732,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available for sale - Unrealized Loss - less than 12 month	3,753,000	210,000
Total Available for Sale Unrealized Loss	3,753,000	210,000
Available For Sale Securities Continuous Unrealized Loss Position Fair Value [Abstract]
Available for sale - Fair Value - less than 12 month	105,335,000	39,522,000
Total Available for Sale Fair Value	105,335,000	39,522,000
FNMA and FHLMC [Member]
Available For Sale Securities Continuous Unrealized Loss Position Amortized Cost [Abstract]
Available for sale - Amortized cost - less than 12 month	108,552,000	34,628,000
Total Available for Sale Amortization cost	108,552,000	34,628,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available for sale - Unrealized Loss - less than 12 month	3,750,000	32,000
Total Available for Sale Unrealized Loss	3,750,000	32,000
Available For Sale Securities Continuous Unrealized Loss Position Fair Value [Abstract]
Available for sale - Fair Value - less than 12 month	104,802,000	34,596,000
Total Available for Sale Fair Value	104,802,000	34,596,000
Continuous Unrealized Loss Position Amortized Cost [Abstract]
Held to Maturity - Amortized cost - less than 12 month	126,767,000
Held to Maturity - Amortized Cost	126,767,000
Held To Maturity Securities, Continuous Unrealized Loss Position Aggregate Losses [Abstract]
Held to Maturity- Unrealized Loss - less than 12 month	1,289,000
Held to Maturity- Unrealized Loss	1,289,000
Held To Maturity Securities Continuous Unrealized Loss Position Fair Value [Abstract]
Held-to-Maturity - Fair Value - less than 12 Month	125,478,000
Held to Maturity - Fair Value	125,478,000
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Available For Sale Securities Continuous Unrealized Loss Position Amortized Cost [Abstract]
Available for sale - Amortized cost - less than 12 month	536,000	5,104,000
Total Available for Sale Amortization cost	536,000	5,104,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available for sale - Unrealized Loss - less than 12 month	3,000	178,000
Total Available for Sale Unrealized Loss	3,000	178,000
Available For Sale Securities Continuous Unrealized Loss Position Fair Value [Abstract]
Available for sale - Fair Value - less than 12 month	533,000	4,926,000
Total Available for Sale Fair Value	$ 533,000	$ 4,926,000

Amortized cost of investments in available-for-sale securities that have been in a loss position.

No definition available.

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- References

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Amortized cost of investments in available-for-sale securities that have been in a loss position for less than twelve months.

+ References

No definition available.

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Amortized cost of investments in available-for-sale securities that have been in a loss position for more than twelve months.

+ References

No definition available.

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Amortized cost of investments in held-to-maturity securities that have been in a loss position for less than twelve months.

+ References

No definition available.

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- Definition

Held to maturity securities continuous unrealized loss position, amortized cost.

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Amount of unrealized loss on securities classified as available-for-sale.

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This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

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No definition available.

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This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months.

+ References

No definition available.

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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position.

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

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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for less than 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity), in continuous unrealized loss position for less than 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563

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