• Filing Date: 2017-08-21
  • Form Type: 10-Q
  • Description: Quarterly report
v3.7.0.1
Note 5 - Segment Information - Summary of Segment Information (Details) - USD ($)
3 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Mar. 31, 2017
Revenues $ 1,146,355 $ 1,377,431  
Segment operating income 167,991 521,044  
Total assets 4,419,151   $ 4,520,649
Chemical [Member]      
Revenues 308,355 291,484  
Segment operating income 65,446 (1,009)  
Total assets 1,188,698   1,110,111
Electronics [Member]      
Revenues 493,592 566,623  
Segment operating income 42,646 280,107  
Total assets 1,902,775   1,553,484
Engineering [Member]      
Revenues 344,408 519,324  
Segment operating income 59,899 $ 241,946  
Total assets $ 1,327,678   $ 1,857,054