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Selected Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended
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May 31, 2025
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Quarterly Financial Information |
Description |  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
Fiscal 2025 |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 53,725 |  |  | $ | 49,491 |  |  | $ | 53,804 |  |  | $ | 51,889 |
Gross profit |  |  | 16,426 |  |  |  | 15,326 |  |  |  | 16,673 |  |  |  | 16,375 |
Net income (loss) |  |  | 590 |  |  |  | (751 | ) |  |  | (2,057 | ) | (1) |  | 1,075 |
Net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |
Common stock - basic |  | $ | 0.04 |  |  | $ | (0.05 | ) |  | $ | (0.15 | ) |  | $ | 0.08 |
Class B common stock - basic |  |  | 0.04 |  |  |  | (0.05 | ) |  |  | (0.13 | ) |  |  | 0.07 |
Common stock - diluted |  |  | 0.04 |  |  |  | (0.05 | ) |  |  | (0.15 | ) |  |  | 0.08 |
Class B common stock - diluted |  |  | 0.04 |  |  |  | (0.05 | ) |  |  | (0.13 | ) |  |  | 0.07 |
(1) Reported loss includes a $3.6 million disposal loss on healthcare assets. |  |  |  |  |  |  |  |  |  |  |  |
Fiscal 2024 |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 52,581 |  |  | $ | 44,130 |  |  | $ | 52,375 |  |  | $ | 47,374 |
Gross profit |  |  | 17,264 |  |  |  | 12,542 |  |  |  | 15,436 |  |  |  | 14,724 |
Net income (loss) |  |  | 1,227 |  |  |  | (1,797 | ) |  |  | 750 |  |  |  | (119 | )
Net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |
Common stock - basic |  | $ | 0.09 |  |  | $ | (0.13 | ) |  | $ | 0.05 |  |  | $ | (0.01 | )
Class B common stock - basic |  |  | 0.08 |  |  |  | (0.12 | ) |  |  | 0.05 |  |  |  | (0.01 | )
Common stock - diluted |  |  | 0.09 |  |  |  | (0.13 | ) |  |  | 0.05 |  |  |  | (0.01 | )
Class B common stock - diluted |  |  | 0.08 |  |  |  | (0.12 | ) |  |  | 0.05 |  |  |  | (0.01 | )

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 270 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 + Details
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