Securities (Amortized Cost and Fair Value of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Schedule Of Available For Sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 5,000	$ 3,495
Due from one to five years, Amortized Cost	3,982	6,483
Available-for-sale Securities Total, Amortized Cost	9,153	10,207
Due in one year or less, Fair Value	4,994	3,472
Due from one to five years, Fair Value	4,013	6,409
Available-for-sale Securities Total, Fair Value	9,183	10,114
Mortgage-Backed Securities - Residential [Member]
Schedule Of Available For Sale Securities [Line Items]
No single maturity, Amortized Cost	134	167
No single maturity, Fair Value	138	170
Available-for-sale Securities Total, Fair Value	138	170
Collateralized Mortgage Obligations [Member]
Schedule Of Available For Sale Securities [Line Items]
No single maturity, Amortized Cost	37	62
No single maturity, Fair Value	38	63
Available-for-sale Securities Total, Fair Value	$ 38	$ 63

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), maturing in next fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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