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INCOME TAXES (Narrative) (Details) - USD ($)
12 Months Ended
Feb. 28, 2022
Feb. 28, 2021
Feb. 29, 2020
Operating Loss Carryforwards [Line Items]      
Change in valuation allowance deferred tax asset $ 5,600,000 $ 9,200,000  
Tax deficiency from share-based payment arrangements 700,000 4,100,000  
Unrecognized tax benefit from uncertain tax position, net 1,600,000 1,800,000 $ 2,200,000
Unrecognized tax benefit from uncertain tax position 800,000    
Accrued interest and/or penalties 0    
Deferred income taxes recognized 0 0  
Minimum [Member]      
Operating Loss Carryforwards [Line Items]      
Income tax benefit attributable to reduction in unrecognized tax benefits 500,000 500,000  
Foreign Tax Authority [Member]      
Operating Loss Carryforwards [Line Items]      
Change in valuation allowance deferred tax asset 1,300,000 2,100,000  
Net operating loss carryforwards 42,800,000    
Unexpire operating loss carryforwards 17,900,000    
Tax credit carryforwards 1,900,000    
Domestic Tax Authority [Member]      
Operating Loss Carryforwards [Line Items]      
Net operating loss carryforwards 32,300,000    
Unexpire operating loss carryforwards 43,100,000    
Unrecognized tax benefits, period increase (decrease) (100,000) $ (400,000)  
Domestic Tax Authority [Member] | Research Tax Credit Carryforward [Member]      
Operating Loss Carryforwards [Line Items]      
Tax credit carryforwards 11,200,000    
State and Local Jurisdiction [Member]      
Operating Loss Carryforwards [Line Items]      
Net operating loss carryforwards 68,300,000    
State and Local Jurisdiction [Member] | Research Tax Credit Carryforward [Member]      
Operating Loss Carryforwards [Line Items]      
Tax credit carryforwards $ 11,700,000