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Revenue Recognition (Tables)
12 Months Ended
Feb. 29, 2020
Revenue Recognition Tables Abstract  
Sales revenue by product line
   Twelve Months Ended 
   February 29,       February 28,     
   2020   % of total   2019   % of total 
Fluxing Systems  $906,000    6%   $1,176,000    10% 
Integrated Coating Systems   3,599,000    23%    1,449,000    13% 
Multi-Axis Coating Systems   6,866,000    45%    4,906,000    42% 
OEM Systems   1,384,000    9%    1,891,000    16% 
Other   2,600,000    17%    2,188,000    19% 
TOTAL  $15,355,000        $11,610,000