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Note 15 - Share-based Compensation (Tables) | 3 Months Ended
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Dec. 31, 2023
Notes Tables |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Three months ended |
|  | December 31, |
|  | 2023 |  |  | 2022 |
Volatility |  |  | 57.8 | % |  |  | 52.1 | %
Risk-free interest rate |  |  | 4.3 | % |  |  | 4.1 | %
Dividend yield |  |  | 0.0 | % |  |  | 0.0 | %
Expected term in years |  |  | 4.2 |  |  |  | 6.1 |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] |
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Outstanding September 30, 2023 |  |  | 379,597 |  |  | $ | 3.94 |
Granted |  |  | 10,000 |  |  | $ | 1.73 |
Released |  |  | (10,000 | ) |  | $ | 2.87 |
Forfeited/cancelled |  |  | - |  |  | $ | - |
Outstanding December 31, 2023 |  |  | 379,597 |  |  | $ | 3.91 |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Number of Shares |  |  | Weighted Average Exercise Price |
Outstanding September 30, 2023 |  |  | 2,904,522 |  |  | $ | 3.19 |
Granted |  |  | 887,250 |  |  | $ | 1.70 |
Forfeited/expired |  |  | (25,000 | ) |  | $ | 1.70 |
Exercised |  |  | - |  |  | $ | - |
Outstanding December 31, 2023 |  |  | 3,766,772 |  |  | $ | 2.85 |
Exerciseable December 31, 2023 |  |  | 992,981 |  |  | $ | 3.48 |
Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] |
|  |  |  |  |  |  |  |  | Weighted Average |  |  | Weighted Average |  |  |  |  |  |  | Weighted Average |
Range of |  |  | Number |  |  | Remaining |  |  | Exercise |  |  | Number |  |  | Exercise |
Exercise Prices |  |  | Outstanding |  |  | Contractual Term |  |  | Price |  |  | Exercisable |  |  | Price |
$1.51 | - | $1.76 |  |  |  | 991,407 |  |  |  | 6.29 |  |  | $ | 1.71 |  |  |  | 104,157 |  |  | $ | 1.75 |
$2.64 | - | $2.68 |  |  |  | 88,000 |  |  |  | 6.60 |  |  | $ | 2.67 |  |  |  | - |  |  | $ | - |
$2.69 | - | $2.69 |  |  |  | 1,100,000 |  |  |  | 5.77 |  |  | $ | 2.69 |  |  |  | 125,000 |  |  | $ | 2.69 |
$3.09 | - | $8.03 |  |  |  | 1,587,365 |  |  |  | 4.75 |  |  | $ | 3.69 |  |  |  | 763,824 |  |  | $ | 3.84 |
|  |  |  |  |  | 3,766,772 |  |  |  | 5.49 |  |  | $ | 2.85 |  |  |  | 992,981 |  |  | $ | 3.48 |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended |
|  | December 31, |
|  | 2023 |  |  | 2022 |
Cost of revenues |  | $ | 39 |  |  | $ | 28 |
Selling, general and administrative |  |  | 380 |  |  |  | 373 |
Research and development |  |  | 27 |  |  |  | 19 |
|  | $ | 446 |  |  | $ | 420 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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