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1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Feb. 28, 2017
1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) [Line Items]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The computation of weighted average common and common equivalent shares used in the calculation of basic and diluted EPS is shown below.

   
Year Ended February 28 (29),
  
   
2017
    
2016
  
Earnings Per Share:
            
  Net earnings applicable to
    common shareholders
  
$
2,860,900
    
$
2,119,300
  
                 
Shares:
                
  Weighted average shares
    outstanding–basic
    
4,077,695
      
4,049,154
  
  Assumed exercise of options
    
5,159
      
2,524
  
                 
  Weighted average shares
    outstanding–diluted
    
4,082,854
      
4,051,678
  
                 
Diluted Earnings Per Share:
                
    Basic
  
$
0.70
    
$
0.52
  
    Diluted
  
$
0.70
    
$
0.52
  
Property, Plant and Equipment, Estimated Useful Life [Member]  
1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) [Line Items]  
Property, Plant and Equipment [Table Text Block]
Property, plant and equipment are stated at cost and depreciated on a straight-line basis over the estimated useful lives, as follows:

Building
30 years
Building improvements
10 – 15 years
Machinery and equipment
3– 15 years
Furniture and fixtures
3 years