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Note 1 - Business Information - Geographic Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2022 | Jan. 31, 2021
Net sales | $ 138,552 | $ 84,694
Property, plant and equipment, net of accumulated depreciation | 24,756 | 26,897
UNITED STATES |  |
Net sales | 46,770 | 42,527
Property, plant and equipment, net of accumulated depreciation | 6,415 | 7,672
CANADA |  |
Net sales | 28,302 | 12,367
Property, plant and equipment, net of accumulated depreciation | 9,750 | 10,592
Middle East/ North Africa [Member] |  |
Net sales | 51,543 | 23,662
Property, plant and equipment, net of accumulated depreciation | 7,595 | 7,854
Europe [Member] |  |
Net sales | 194 | 118
INDIA |  |
Net sales | 11,101 | 1,942
Property, plant and equipment, net of accumulated depreciation | 996 | 779
Other Geographical Area [Member] |  |
Net sales | $ 642 | $ 4,078

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