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Benefit Plans (Nonvested Restricted Stock Awards Activity) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) shares
Fair Value
Beginning balance | $	$ 0
Granted | $	82
Vested | $	0
Forfeited | $	0
Ending balance | $	$ 82
Restricted Stock | Isabella Bank Corporation Restricted Stock Plan
Number of Shares
Beginning balance (in shares) | shares	0
Granted (in shares) | shares	4,658
Vested (in shares) | shares	0
Forfeited (in shares) | shares	0
Ending balance (in shares) | shares	4,658

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Forfeited in Period

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Granted in Period

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Intrinsic value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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