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5. EQUITY TRANSACTIONS (Details - Warrants outstanding and exercisable) - Warrants [Member] - $ / shares
12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Warrants outstanding 2,021,368 342,992 394,839
Weighted Average Exercise Price, outstanding $ 5.21 $ 27.00 $ 27.00
Warrants exercisable 2,021,368    
$2.75 or Below [Member]      
Warrants outstanding 1,732,585    
Weighted Average Remaining Life (Years) 4 years 9 months 18 days    
Weighted Average Exercise Price, outstanding $ 2.23    
Warrants exercisable 1,732,585    
Weighted Average Exercise Price, exercisable $ 4.80    
$16.50 - $59.25 [Member]      
Warrants outstanding 249,985    
Weighted Average Remaining Life (Years) 2 years 26 days    
Weighted Average Exercise Price, outstanding $ 23.24    
Warrants exercisable 249,985    
Weighted Average Exercise Price, exercisable $ 2.07    
$64.50 - $135.00 [Member]      
Warrants outstanding 38,798    
Weighted Average Remaining Life (Years) 6 months 29 days    
Weighted Average Exercise Price, outstanding $ 92.48    
Warrants exercisable 38,798    
Weighted Average Exercise Price, exercisable $ 0.58