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Note 2 - Significant Accounting Policies (Tables) | 12 Months Ended
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Jan. 31, 2022
Notes Tables |
Restrictions on Cash and Cash Equivalents [Table Text Block] |
(In thousands) |  | 2021 |  | 2020
Cash and cash equivalents |  | $ | 8,214 |  |  | $ | 7,174 |
Restricted cash |  |  | 1,557 |  |  |  | 1,201 |
Cash, cash equivalents and restricted cash shown in the statement of cash flows |  | $ | 9,771 |  |  | $ | 8,375 |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
(In thousands) |  | 2021 |  |  | 2020 |
Equity adjustment foreign currency, gross |  | $ | (1,947 | ) |  | $ | (1,590 | )
Minimum pension liability, gross |  |  | (1,362 | ) |  |  | (1,902 | )
Subtotal excluding tax effect |  |  | (3,309 | ) |  |  | (3,492 | )
Tax effect of equity adjustment foreign currency |  |  | 91 |  |  |  | 91 |
Tax effect of minimum pension liability |  |  | 114 |  |  |  | 114 |
Total accumulated other comprehensive loss |  | $ | (3,104 | ) |  | $ | (3,287 | )
Schedule of Inventory, Current [Table Text Block] |
(In thousands) |  | 2021 |  |  | 2020 |
Raw materials |  | $ | 13,909 |  |  | $ | 12,499 |
Work in process |  |  | 426 |  |  |  | 211 |
Finished goods |  |  | 527 |  |  |  | 375 |
Subtotal |  |  | 14,862 |  |  |  | 13,085 |
Less allowance |  |  | 1,101 |  |  |  | 928 |
Inventories, net |  | $ | 13,761 |  |  | $ | 12,157 |
Property, Plant and Equipment [Table Text Block] |
(In thousands) |  | 2021 |  |  | 2020 |
Land, buildings and improvements |  | $ | 22,748 |  |  | $ | 22,713 |
Machinery and equipment |  |  | 50,534 |  |  |  | 49,406 |
Furniture, office equipment and computer systems |  |  | 3,941 |  |  |  | 3,830 |
Transportation equipment |  |  | 2,000 |  |  |  | 2,725 |
Subtotal |  |  | 79,223 |  |  |  | 78,674 |
Less accumulated depreciation |  |  | 54,467 |  |  |  | 51,777 |
Property, plant and equipment, net of accumulated depreciation |  | $ | 24,756 |  |  | $ | 26,897 |
Schedule of Goodwill [Table Text Block] |
|  |  |  |  |  | Foreign exchange |  |  |  |
(In thousands) |  | January 31, 2021 |  | change effect |  | January 31, 2022
Goodwill |  | $ | 2,332 |  |  | $ | 10 |  |  | $ | 2,342 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
Basic weighted average number of common shares outstanding (in thousands) |  | 2021 |  |  | 2020 |
Basic weighted average number of common shares outstanding |  |  | 8,133 |  |  |  | 8,126 |
Dilutive effect of stock options and restricted stock units |  |  | 285 |  |  |  | - |
Weighted average number of common shares outstanding assuming full dilution |  |  | 8,418 |  |  |  | 8,126 |
Restricted Stock and Stock options not included in the computation of diluted EPS of common stock because the option exercise prices exceeded the average market prices |  |  | 39 |  |  |  | 214 |
Canceled options during the year |  |  | (33 | ) |  |  | (25 | )
Restricted Stock and Stock options with an exercise price below the average stock price |  |  | 285 |  |  |  | 168 |

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