Available for Sale Securities (Schedule of amortized cost, gross unrealized gains and losses and fair values of available for sale securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 115,080	$ 104,573
Gross Unrealized Gains	613	12
Gross Unrealized Losses	(861)	(3,273)
Fair Value	114,832	101,312
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		3,036
Gross Unrealized Losses		(65)
Fair Value		2,971
U.S. government agency mortgage-backed securities-residential
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	98,842	82,965
Gross Unrealized Gains	464	8
Gross Unrealized Losses	(828)	(2,757)
Fair Value	98,478	80,216
U.S. government agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	12,049	16,919
Gross Unrealized Gains	53
Gross Unrealized Losses	(26)	(451)
Fair Value	12,076	16,468
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,384	1,228
Gross Unrealized Gains	17	4
Gross Unrealized Losses	(5)
Fair Value	1,396	1,232
Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,250
Gross Unrealized Gains	25
Gross Unrealized Losses	(2)
Fair Value	2,273
Other
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	555	425
Gross Unrealized Gains	54
Fair Value	$ 609	$ 425

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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Amortized cost 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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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