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PROPERTY AND EQUIPMENT NET (Details) - USD ($)
12 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Property, plant and equipment, gross $ 21,730,000 $ 20,198,000
Less accumulated depreciation and amortization (12,007,000) (10,176,000)
Construction-in-progress 96,000 91,000
Property, plant and equipment, net 9,819,000 10,113,000
Machinery and Equipment    
Property, plant and equipment, gross $ 5,095,000 4,559,000
Machinery and Equipment | Minimum    
Property, plant and equipment, useful life 3 years  
Machinery and Equipment | Maximum    
Property, plant and equipment, useful life 10 years  
Furniture and Fixtures    
Property, plant and equipment, gross $ 1,065,000 906,000
Furniture and Fixtures | Minimum    
Property, plant and equipment, useful life 3 years  
Furniture and Fixtures | Maximum    
Property, plant and equipment, useful life 10 years  
Leasehold Improvements    
Property, plant and equipment, gross $ 1,735,000 1,598,000
Property, plant and equipment, useful life Lease term  
Software Costs    
Property, plant and equipment, gross $ 1,187,000 1,187,000
Property, plant and equipment, useful life 3 years  
Computer Hardware and Software    
Property, plant and equipment, gross $ 4,652,000 3,953,000
Property, plant and equipment, useful life 3 years  
Land and Building    
Property, plant and equipment, gross $ 9,183,000 $ 9,182,000
Land and Building | Minimum    
Property, plant and equipment, useful life 20 years  
Land and Building | Maximum    
Property, plant and equipment, useful life 30 years