Investments - Schedule of major components of securities available for sale (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale
Amortized Cost	$ 26,846	$ 28,527
Gross unrealized gain	783	140
Gross unrealized loss	(3)	(323)
Estimated Fair Value	27,626	28,344
Commercial mortgage backed securities issued by U.S. Agencies
Debt Securities, Available-for-sale
Amortized Cost	11,414	9,147
Gross unrealized gain	406	128
Gross unrealized loss	0	(46)
Estimated Fair Value	11,820	9,229
Residential mortgage backed securities issued by U.S. agencies
Debt Securities, Available-for-sale
Amortized Cost	15,432	19,380
Gross unrealized gain	377	12
Gross unrealized loss	(3)	(277)
Estimated Fair Value	$ 15,806	$ 19,115

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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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).

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