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Note 2 - Business Acquisition (Tables) | 6 Months Ended
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Apr. 30, 2022
Notes Tables |
Business Acquisition, Pro Forma Information [Table Text Block] |
|  | Three Months Ended April 30, |  |  | Six Months Ended April 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Revenue |  | $ | 22,559 |  |  | $ | 14,869 |  |  | $ | 44,527 |  |  | $ | 27,988 |
Net income |  |  | 429 |  |  |  | 5,146 |  |  |  | 739 |  |  |  | 4,666 |
Earnings per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.04 |  |  | $ | 0.52 |  |  | $ | 0.07 |  |  | $ | 0.47 |
Diluted |  | $ | 0.04 |  |  | $ | 0.51 |  |  | $ | 0.07 |  |  | $ | 0.46 |
Microlab/FXR LLC [Member] |
Notes Tables |
Schedule of Business Acquisitions, by Acquisition [Table Text Block] |
Cash consideration paid |  | $ | 24,250,000 |
Total consideration transferred |  | $ | 24,250,000 |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] |
Current assets |  | $ | 6,924,000 |
Property and equipment |  |  | 198,000 |
Intangible assets |  |  | 13,840,000 |
Goodwill |  |  | 4,990,000 |
Non-interest bearing liabilities |  |  | (1,702,000 | )
Net assets acquired at fair value |  | $ | 24,250,000 |

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