v3.26.1
Schedule of revenue recognition - sales revenue by product line (Details) - USD ($)
3 Months Ended
May 31, 2026
May 31, 2025
Disaggregation of Revenue [Line Items]    
Sales revenue $ 5,661,159 $ 5,132,773
Fluxing Systems [Member]    
Disaggregation of Revenue [Line Items]    
Sales revenue $ 92,000 $ 152,000
Sales revenue, percent 2.00% 3.00%
In-Line Coating Systems [Member]    
Disaggregation of Revenue [Line Items]    
Sales revenue $ 2,159,000 $ 3,054,000
Sales revenue, percent 38.00% 59.00%
Multi-Axis Coating Systems [Member]    
Disaggregation of Revenue [Line Items]    
Sales revenue $ 2,075,000 $ 677,000
Sales revenue, percent 37.00% 13.00%
OEM Systems [Member]    
Disaggregation of Revenue [Line Items]    
Sales revenue $ 231,000 $ 130,000
Sales revenue, percent 4.00% 3.00%
Spare Parts, Services and Other [Member]    
Disaggregation of Revenue [Line Items]    
Sales revenue $ 1,104,000 $ 1,120,000
Sales revenue, percent 20.00% 22.00%
Total [Member]    
Disaggregation of Revenue [Line Items]    
Sales revenue $ 5,661,000 $ 5,133,000