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The annual compensation package for nonemployee directors.

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The 20 day average price of a single share of a number of saleable stocks of a company.

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The number of options to vest each year under share based payment arrangement.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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

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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.

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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.

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

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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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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Percentage of vesting of award under share-based payment arrangement.

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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.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of options vested.

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Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).

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Note 9 - Stock Options (Details Textual) - USD ($)						12 Months Ended
Note 9 - Stock Options (Details Textual) - USD ($)	Jul. 16, 2021	Jan. 12, 2021	Jun. 30, 2020	Jan. 09, 2020	Jan. 06, 2020	Oct. 31, 2021	Sep. 15, 2020	Jul. 22, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Year)						6 years 4 months 9 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term (Year)						5 years 7 months 2 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term (Year)						6 years 4 months 9 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value						$ 1,544,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value						628,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value						1,533,000
Share-based Payment Arrangement, Nonemployee [Member]
Nonemployee Director, Annual Compensation							$ 50,000
Incentive Stock Options [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total						$ 527,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)						2 years 7 months 20 days
Restricted Stock [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total						$ 393,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)						1 year 1 month 13 days
One Employee [Member] \| Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)			10,000		50,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares (in shares)			2,500		10,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Number to Vest Each Year (in shares)			2,500		10,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			3 years		4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)			10 years		10 years
Two Officers and One Employee [Member]
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total (in shares)				12,075
Share-based Payment Arrangement, Expense				$ 77,000
Two Employees [Member] \| Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares (in shares)				3,241
Three Officers and Two Employees [Member] \| Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)				77,000
Three Officers and Two Employees [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)				38,500
Three Officers and Two Employees [Member] \| Restricted Stock and Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)				4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)				10 years
Three Officers and Two Employees [Member] \| Restricted Stock and Incentive Stock Options [Member] \| Vesting on January 9, 2021 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage				25.00%
Three Officers and Two Employees [Member] \| Restricted Stock and Incentive Stock Options [Member] \| Vesting Quarterly After January 9, 2021 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)				3 years
One Manager and Three Officers [Member] \| Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)		67,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)		10 years
One Manager and Three Officers [Member] \| Incentive Stock Options [Member] \| Vesting on January 12, 2022 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		25.00%
One Manager and Three Officers [Member] \| Incentive Stock Options [Member] \| Vesting Quarterly After January 12, 2022 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		3 years
One Manager and Three Officers [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		33,500
Chief Executive Officer [Member] \| Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)	50,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	10 years
Non-employee Directors and Chairperson of Committee on Board [Member]
Annual Payable, Additional Compensation							$ 15,000
Share Price, 20 Day Average (in dollars per share)							$ 4.34
The 2020 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)								1,250,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)						1,123,232