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Basic and Diluted Income and Loss per Common Share (Tables)
3 Months Ended
Jun. 30, 2021
Earnings Per Share [Abstract]  
Schedule of basic and diluted net loss per share:
          
   Three Months Ended
   June 30, 2021  June 30, 2020
Net (loss)  $(6,842)  $(139,305)
Weighted-average basic shares outstanding   11,582,641    11,582,641 
Effect of dilutive securities            
Weighted-average diluted shares   11,582,641    11,582,641 
Basic net (loss) per share  $0.00   $(0.01)
Diluted net (loss) per share  $0.00   $(0.01)
 Antidilutive employee stock options   1,036,000    1,018,000