Note 15 - Stockholders' Equity - Summary of Combined Activity Under Equity Incentive Plans (Details) - $ / shares	12 Months Ended
Sep. 30, 2024	Sep. 30, 2023
Outstanding, options (in shares)	0	0
Outstanding, weighted average exercise price (in dollars per share)	$ 0	$ 0
Forfeited, options (in shares)	0	0
Forfeited, weighted average exercise price (in dollars per share)	$ 0	$ 0
Outstanding, options (in shares)	0	0
Outstanding, weighted average exercise price (in dollars per share)	$ 0	$ 0
Restricted Stock [Member]
Outstanding, RSA (in shares)	0	1,000
Outstanding, weighted average grant date fair value per share (in dollars per share)	$ 0	$ 14.59
Forfeited, RSA (in shares)		0
Forfeited, weighted average grant date fair value per share (in dollars per share)		$ 0
Vested, RSA (in shares)	0	(1,000)
Vested, weighted average grant date fair value per share (in dollars per share)	$ 0	$ 14.59
Outstanding, RSA (in shares)	0	0
Outstanding, weighted average grant date fair value per share (in dollars per share)	$ 0	$ 0
Restricted Stock Units (RSUs) [Member]
Outstanding, RSA (in shares)	377,549	323,859
Outstanding, weighted average grant date fair value per share (in dollars per share)	$ 6.46	$ 9.54
Granted, RSU (in shares)	233,200	228,250
Granted, weighted average grant date fair value per unit (in dollars per share)	$ 12.26	$ 4.7
Forfeited, RSA (in shares)	(26,253)	(7,312)
Forfeited, weighted average grant date fair value per share (in dollars per share)	$ 6.47	$ 8.44
Vested, RSA (in shares)	(175,601)	(167,248)
Vested, weighted average grant date fair value per share (in dollars per share)	$ 7.08	$ 9.94
Outstanding, RSA (in shares)	408,895	377,549
Outstanding, weighted average grant date fair value per share (in dollars per share)	$ 9.5	$ 6.46

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

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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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The weighted average fair value at grant date for nonvested equity-based awards issued 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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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
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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