Investments - Amortized Cost and Fair Value of AFS Securities and Corresponding Amounts of Gross Unrealized Gains And Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Amortized cost and fair value of available-for-sale securities and gross unrealized gains and losses [Abstract]
Amortized Cost	$ 9,867	$ 9,085
Gross Unrealized Gains	331	229
Gross Unrealized Losses	0	(8)
Estimated Fair Value	10,198	9,306
Municipal bonds
Amortized cost and fair value of available-for-sale securities and gross unrealized gains and losses [Abstract]
Amortized Cost	4,161	3,197
Gross Unrealized Gains	202	173
Gross Unrealized Losses	0	0
Estimated Fair Value	4,363	3,370
Agency mortgage-backed securities
Amortized cost and fair value of available-for-sale securities and gross unrealized gains and losses [Abstract]
Amortized Cost	5,706	5,888
Gross Unrealized Gains	129	56
Gross Unrealized Losses	0	(8)
Estimated Fair Value	$ 5,835	$ 5,936

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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
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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).

+ References

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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