Nominal or face amount used to calculate payment on derivative.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-Section 50
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(b))
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Balance Type:	credit
Period Type:	duration

- Definition

Amount of expenses related to the generation of investment income.

+ References

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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
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Fair Value Measurements - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
Fair Value Measurements - Narrative (Details) - USD ($)	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative, notional amount	$ 50,000,000		$ 50,000,000
Investment expense	244,000	$ 178,000	724,000
Investment income, interest				$ 468,000
Swap 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative, notional amount	$ 20,000,000		$ 20,000,000