Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Abstract]
Schedule Of Accumulated Other Comprehensive Income (Loss)	Changes in Accumulated Other Comprehensive Income by ComponentFor the Year Ended December 31, 2021, 2020 and 2019 (1) Unrealized Gains and Losses on Available-for-Sale Securities 2021 2020 2019Accumulated other comprehensive gain (loss), beginning of period $ 96 $ 28 $ (73)Other comprehensive gain (loss) before reclassifications (266) 68 101Less amount reclassified from accumulated other comprehensive loss (2) - - -Net current-period other comprehensive income (loss) (266) 68 101Accumulated other comprehensive income (loss), end of period $ (170) $ 96 $ 28 (1)All amounts are net of tax. Amounts in parentheses indicate a reduction of other comprehensive income.(2)There were no amounts reclassified out of other comprehensive income for years ended December 31, 2021, 2020 and 2019.

Tabular disclosure of the components of accumulated other comprehensive income (loss).

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900

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