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4. FAIR VALUE MEASUREMENTS (Tables)
3 Months Ended
Jun. 30, 2019
Fair Value Disclosures [Abstract]  
Schedule of Cost Method Investments
         Fair value measurement at reporting date using 
         Quoted prices
in active markets for identical assets
    
Significant other
observable inputs
    Significant
unobservable
inputs
 
    Balance    (Level 1)    (Level 2)    (Level 3) 
September 30, 2018:  $   $   $   $ 
                     
Common stock - cost method investment   326,941         326,941      
                     
June 30, 2019:  $326,941   $   $326,941   $