v3.25.2
Note 10 - Disaggregated Net Revenues - Net Revenue, Classified by Geography (Details) - USD ($)
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Revenue $ 3,197,110 $ 2,965,406
Chemical [Member]    
Revenue 1,086,707 1,101,016
Electronics [Member]    
Revenue 1,526,236 1,512,692
Engineering [Member]    
Revenue 584,167 351,698
UNITED STATES    
Revenue 2,856,133 2,652,700
UNITED STATES | Chemical [Member]    
Revenue 745,730 788,310
UNITED STATES | Electronics [Member]    
Revenue 1,526,236 1,512,692
UNITED STATES | Engineering [Member]    
Revenue 584,167 351,698
Non-US [Member]    
Revenue 340,977 312,706
Non-US [Member] | Chemical [Member]    
Revenue 340,977 312,706
Non-US [Member] | Electronics [Member]    
Revenue 0 0
Non-US [Member] | Engineering [Member]    
Revenue $ 0 $ 0