Investment Securities Schedule of Unrealized Loss on Investments (Details) $ in Thousands	Sep. 30, 2020 USD ($) loan	Dec. 31, 2019 USD ($) loan
Less Than 12 Months
Number of Securities \| loan	11	21
Fair Value	$ 10,469	$ 12,382
Gross Unrealized Losses	$ (44)	$ (98)
12 Months and over
Number of Securities \| loan	12	20
Fair Value	$ 3,906	$ 9,367
Gross Unrealized Losses	$ (122)	$ (168)
Total
Number of Securities \| loan	23	41
Fair Value	$ 14,375	$ 21,749
Gross Unrealized Losses	$ (166)	$ (266)
U.S. Government-sponsored enterprises
Less Than 12 Months
Number of Securities \| loan	0	4
Fair Value	$ 0	$ 2,376
Gross Unrealized Losses	$ 0	$ (22)
12 Months and over
Number of Securities \| loan	8	8
Fair Value	$ 1,787	$ 2,772
Gross Unrealized Losses	$ (39)	$ (54)
Total
Number of Securities \| loan	8	12
Fair Value	$ 1,787	$ 5,148
Gross Unrealized Losses	$ (39)	$ (76)
Agency mortgage-backed
Less Than 12 Months
Number of Securities \| loan	10	8
Fair Value	$ 9,900	$ 6,193
Gross Unrealized Losses	$ (32)	$ (38)
12 Months and over
Number of Securities \| loan	1	8
Fair Value	$ 696	$ 4,861
Gross Unrealized Losses	$ (6)	$ (43)
Total
Number of Securities \| loan	11	16
Fair Value	$ 10,596	$ 11,054
Gross Unrealized Losses	$ (38)	$ (81)
State and political subdivisions
Less Than 12 Months
Number of Securities \| loan	1	9
Fair Value	$ 569	$ 3,813
Gross Unrealized Losses	$ (12)	$ (38)
12 Months and over
Number of Securities \| loan	0	1
Fair Value	$ 0	$ 304
Gross Unrealized Losses	$ 0	$ (1)
Total
Number of Securities \| loan	1	10
Fair Value	$ 569	$ 4,117
Gross Unrealized Losses	$ (12)	$ (39)
Corporate
Less Than 12 Months
Number of Securities \| loan	0	0
Fair Value	$ 0	$ 0
Gross Unrealized Losses	$ 0	$ 0
12 Months and over
Number of Securities \| loan	3	3
Fair Value	$ 1,423	$ 1,430
Gross Unrealized Losses	$ (77)	$ (70)
Total
Number of Securities \| loan	3	3
Fair Value	$ 1,423	$ 1,430
Gross Unrealized Losses	$ (77)	$ (70)

Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position

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Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Greater Than 12 Months

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Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less Than 12 Months

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without an allowance for credit loss. Includes beneficial interest in securitized financial asset.

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