Investment Securities - Fair value and gross unrealized losses on available for sale debt securities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Available-for-sale securities other than mortgage backed securities
Securities in a continuous unrealized loss position presented by length of time
Less than 12 Months, Fair Value	$ 3,309	$ 4,496
Less than 12 Months, Gross Unrealized Losses	(25)	(40)
12 Months or More, Fair Value	0
12 Months or More, Gross Unrealized Losses	0
Total, Fair Value	3,309	4,496
Total, Gross Unrealized Losses	(25)	(40)
Municipal obligations
Securities in a continuous unrealized loss position presented by length of time
Less than 12 Months, Fair Value	3,309	4,496
Less than 12 Months, Gross Unrealized Losses	(25)	(40)
12 Months or More, Fair Value	0
12 Months or More, Gross Unrealized Losses	0
Total, Fair Value	3,309	4,496
Total, Gross Unrealized Losses	$ (25)	$ (40)

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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.

+ References

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-Publisher FASB
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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.

+ References

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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 less 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 less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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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 unrealized loss position without allowance for credit loss.

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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 unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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