Interest rate charge for ESOP loan.

No definition available.

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- Definition

Term of the Employee Stock Ownership Plan (ESOP) loan. The ESOP purchased shares of the Company using proceeds from a loan from the Company.

+ References

No definition available.

+ Details

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- Definition

Percentage of outstanding company shares purchased by ESOP.

+ References

No definition available.

+ Details

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- Definition

Percentage of shares may be granted as restricted stock awards during the period.

+ References

No definition available.

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- Definition

Amount, after tax, of expense for award under share-based payment arrangement.

+ References

No definition available.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

+ References

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Period Type:	duration

- Definition

The amount of plan compensation cost recognized during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
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- Definition

This item represents the number of shares provided to the Employee Stock Ownership Plan (ESOP) during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Period Type:	duration

- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

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-Section 50
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Period Type:	duration

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Data Type:	xbrli:sharesItemType
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Period Type:	instant

- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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-SubTopic 10
-Section 50
-Paragraph 2
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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 2
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Period Type:	duration

- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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Period Type:	instant

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Note 10 - Stock Compensation Plans (Details Textual) - USD ($)	1 Months Ended		3 Months Ended			12 Months Ended
	May 31, 2018	May 31, 2013	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2018	Dec. 31, 2007	Dec. 31, 2021	Dec. 31, 2020	May 31, 2008
Employee Stock Ownership Plan (ESOP), Compensation Expense			$ 91,000	$ 59,000
Share-Based Payment Arrangement, Option [Member]
Share-based Payment Arrangement, Expense, after Tax			11,000
Share-based Payment Arrangement, Expense, Tax Benefit			$ 1,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			1 year 1 month 6 days
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)			10 years		10 years
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount			$ 50,000
Share-Based Payment Arrangement, Option [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			5 years		5 years
The 2008 Recognition and Retention Plan [Member]
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased (in shares)		195,000
The 2013 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)		195,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			5 years
The 2013 Stock Incentive Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)		48,750
Percentage of Shares May Be Granted As Restricted Stock Awards		25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)			1,200
The 2013 Stock Incentive Plan [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)		146,250
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)			3,200
The 2018 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	155,000
The 2018 Stock Incentive Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	38,750
Percentage of Shares May Be Granted As Restricted Stock Awards	25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)			11,750
The 2018 Stock Incentive Plan [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	116,250
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)			37,250
Stock Incentive Plans [Member]
Share-based Payment Arrangement, Expense, after Tax			$ 31,000	$ 32,000
Share-based Payment Arrangement, Expense, Tax Benefit			7,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total			$ 137,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			1 year 2 months 12 days
Stock Incentive Plans [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			5 years
Stock Incentive Plans [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)			18,845
The 2008 Stock Option Plan [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)									277,726
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)			0
The Option Plan and Stock Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)			232,136
The Option Plan and Stock Incentive Plan [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)			232,136	238,636			233,136	240,636
Employee Stock Ownership Plan [Member]
Percentage of Company Shares Purchased by ESOP						8.00%
Employee Stock Ownership Plan (ESOP), Shares Contributed to ESOP (in shares)			4,000			222,180
ESOP Loan Interest Rate						7.75%
Employee Stock Ownership Plan (ESOP), Loan Term (Year)						15 years
Employee Stock Ownership Plan (ESOP), Compensation Expense			$ 84,000