Represents matching of common stock purchased per individual within a calendar year.

No definition available.

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- Definition

Represents matching percentage of common stock purchased.

+ References

No definition available.

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- Definition

Represents number of shares available for grant pursuant to exercise of incentive stock options.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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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

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

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 718
-SubTopic 10
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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Number of shares issued under share-based payment arrangement.

+ References

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Balance Type:	na
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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of non-vested options outstanding.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Value, before forfeiture, of shares granted under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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Note 7 - Stock Based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Sep. 30, 2019	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2019
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)		13,000		13,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares (in shares)		0		0
Share Price (in dollars per share)		$ 21.57
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total		$ 1,700
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		3 years 7 months 6 days
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)		42,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		19,000
The 2019 Plan [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)					1,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Pursuant to Exercise of Incentive Stock Options (in shares)					1,000,000
The 2019 Plan [Member] \| Share-Based Payment Arrangement, Option [Member] \| Employee or Consultant [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)					250,000
The 2019 Plan [Member] \| Share-Based Payment Arrangement, Option [Member] \| Non-employee Director [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)					50,000
The 2019 Plan [Member] \| Restricted Stock [Member] \| Board of Directors [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)		2,364	3,984
Stock Issued During Period, Value, Issued for Services		$ 52	$ 69
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)		1,970	3,320
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Month)		3 months	3 months
The 2019 Plan [Member] \| Restricted Stock [Member] \| An Employee [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)		15,431	44,871
Stock Issued During Period, Value, Issued for Services		$ 304	$ 764
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)			41,066
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Month)			3 months
The 2019 Plan [Member] \| Restricted Stock [Member] \| Chief Executive Officer [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)		5,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)		9,272
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Month)		3 months
The 2019 Plan [Member] \| Restricted Stock [Member] \| Certain Key Employees [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Month)		4 years
The 2019 Plan [Member] \| Restricted Stock [Member] \| Workforce for Services [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)			28,735
Stock Issued During Period, Value, Issued for Services			$ 537
Share Purchase Match Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Matching Percentage of Common Stock Purchased	20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Matching of Common Stock Purchased per Individual Within a Calendar Year	$ 25
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)		3,000	4,000
Shares Granted, Value, Share-Based Payment Arrangement, before Forfeiture		$ 54	$ 76
Share Purchase Match Program [Member] \| Restricted Stock [Member] \| Board of Directors [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)		394	664
Share Purchase Match Program [Member] \| Restricted Stock [Member] \| An Employee [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			3,805
Share Purchase Match Program [Member] \| Restricted Stock [Member] \| Chief Executive Officer [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)		1,159