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Note 2 - Significant Accounting Policies (Tables) | 12 Months Ended
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Jan. 31, 2021
Notes Tables |
Restrictions on Cash and Cash Equivalents [Table Text Block] |
(In thousands) |  | 2020 |  | 2019
Cash and cash equivalents |  | $ | 7,174 |  |  | $ | 13,371 |
Restricted cash |  |  | 1,201 |  |  |  | 1,287 |
Cash, cash equivalents and restricted cash shown in the statement of cash flows |  | $ | 8,375 |  |  | $ | 14,658 |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
(In thousands) |  | 2020 |  |  | 2019 |
Equity adjustment foreign currency, gross |  | $ | (1,590 | ) |  | $ | (1,879 | )
Minimum pension liability, gross |  |  | (1,902 | ) |  |  | (2,087 | )
Subtotal excluding tax effect |  |  | (3,492 | ) |  |  | (3,966 | )
Tax effect of equity adjustment foreign currency |  |  | 91 |  |  |  | 91 |
Tax effect of minimum pension liability |  |  | 114 |  |  |  | 115 |
Total accumulated other comprehensive loss |  | $ | (3,287 | ) |  | $ | (3,760 | )
Schedule of Inventory, Current [Table Text Block] |
(In thousands) |  | 2020 |  |  | 2019 |
Raw materials |  | $ | 12,499 |  |  | $ | 13,859 |
Work in process |  |  | 211 |  |  |  | 592 |
Finished goods |  |  | 375 |  |  |  | 798 |
Subtotal |  |  | 13,085 |  |  |  | 15,249 |
Less allowance |  |  | 928 |  |  |  | 751 |
Inventories, net |  | $ | 12,157 |  |  | $ | 14,498 |
Property, Plant and Equipment [Table Text Block] |
(In thousands) |  | 2020 |  |  | 2019 |
Land, buildings and improvements |  | $ | 22,713 |  |  | $ | 22,328 |
Machinery and equipment |  |  | 49,406 |  |  |  | 47,409 |
Furniture, office equipment and computer systems |  |  | 3,830 |  |  |  | 4,317 |
Transportation equipment |  |  | 2,725 |  |  |  | 3,762 |
Subtotal |  |  | 78,674 |  |  |  | 77,816 |
Less accumulated depreciation |  |  | 51,777 |  |  |  | 49,187 |
Property, plant and equipment, net of accumulated depreciation |  | $ | 26,897 |  |  | $ | 28,629 |
Schedule of Goodwill [Table Text Block] |
|  |  |  |  |  | Foreign exchange |  |  |  |
(In thousands) |  | January 31, 2020 |  | change effect |  | January 31, 2021
Goodwill |  | $ | 2,254 |  |  | $ | 78 |  |  | $ | 2,332 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
Basic weighted average number of common shares outstanding (in thousands) |  | 2020 |  |  | 2019 |
Basic weighted average number of common shares outstanding |  |  | 8,126 |  |  |  | 7,989 |
Dilutive effect of stock options and restricted stock units |  |  | - |  |  |  | 431 |
Weighted average number of common shares outstanding assuming full dilution |  |  | 8,126 |  |  |  | 8,420 |
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 |  |  | 214 |  |  |  | 143 |
Canceled options during the year |  |  | (25 | ) |  |  | (33 | )
Restricted Stock and Stock options with an exercise price below the average stock price |  |  | 168 |  |  |  | 431 |

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