Summary of Significant Accounting Policies - Additional Information (Detail)
$ / shares in Units, $ in Thousands
12 Months Ended
Feb. 29, 2020
USD ($)
Segment
$ / shares
shares
Feb. 28, 2019
USD ($)
Apr. 13, 2020
USD ($)
Mar. 01, 2019
USD ($)
Jan. 20, 2014
shares
Summary Of Significant Accounting Policies Line Items [Line Items]          
Reserves for obsolescence $ 796 $ 859      
Stock options, debentures, and other liabilities convertible into shares excluded from diluted earnings per (loss) share calculation | shares | shares 200,000        
Depreciation expense $ 226 $ 256      
Investment on operating properties $ 200        
Authorized stock repurchase | shares 2,632,500        
Additional authorized stock repurchase | shares         1,500,000
Repurchase of treasury stock (in shares) | shares 8,858        
Average cost of repurchase shares | $ / shares $ 1.12        
Remaining repurchase of shares authorized | shares 490,186        
Number of reportable segments | Segment 1        
Remaining performance obligations $ 404        
Revenue, Performance Obligation, Description of Timing We expect to recognize revenue these remaining performance obligations over the next 24 months. We have elected not to provide disclosures regarding remaining performance obligations for contracts with a term of 1 year or less.        
Operating Lease, Liability $ 1,648   $ 1,648    
Accounting Standards Update 2016-02 [Member]          
Summary Of Significant Accounting Policies Line Items [Line Items]          
Operating Lease, Liability       $ 2,100  
Building | Maximum          
Summary Of Significant Accounting Policies Line Items [Line Items]          
Useful life 20 years        
Building | Minimum          
Summary Of Significant Accounting Policies Line Items [Line Items]          
Useful life 10 years        
Machinery and Equipment | Maximum          
Summary Of Significant Accounting Policies Line Items [Line Items]          
Useful life 10 years        
Machinery and Equipment | Minimum          
Summary Of Significant Accounting Policies Line Items [Line Items]          
Useful life 5 years        
FLORIDA          
Summary Of Significant Accounting Policies Line Items [Line Items]          
Number of merged businesses 2        
Number of consolidated Facilities 1        
Customer Concentration Risk | Sales Revenue, Goods, Net          
Summary Of Significant Accounting Policies Line Items [Line Items]          
Concentration risk, percentage of consolidated net sales 24.00%        
Customer Concentration Risk | Non-US | Sales Revenue, Goods, Net          
Summary Of Significant Accounting Policies Line Items [Line Items]          
Concentration risk, percentage of consolidated net sales 11.00% 11.00%