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REVENUE RECOGNITION (Tables)
12 Months Ended
Feb. 28, 2023
Revenue from Contract with Customer [Abstract]  
Revenue recognition - sales revenue by product line
                    
   Twelve Months Ended 
   February 28,       February 28,     
   2023   % of total   2022   % of total 
Fluxing Systems  $1,179,000    8%   $691,000    4% 
Integrated Coating Systems   1,114,000    7%    1,182,000    7% 
Multi-Axis Coating Systems   6,785,000    45%    9,912,000    58% 
OEM Systems   2,144,000    14%    2,381,000    14% 
Other   3,836,000    26%    2,967,000    17% 
TOTAL  $15,058,000        $17,133,000