Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY (Narrative) (Details)

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STOCKHOLDERS' EQUITY (Narrative) (Details) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Apr. 02, 2020
Feb. 12, 2020
Aug. 15, 2019
Feb. 20, 2020
Mar. 31, 2019
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Class of Stock [Line Items]                  
Common stock issued             1,542,188    
Common stock par value             $ 0.001   $ 0.001
Common stock issued, Value             $ 9,253,128    
Total compensation cost for stock options not yet recognized             $ 21,198    
Total compensation cost for stock options not yet recognized, period             1 year    
Proceeds from warrants exercise             $ 1,650,000  
Stock option granted               17,144
Exercise price of stock option             $ 14.00   $ 14.00
Options forfeited                 14,286
Subsequent Event [Member]                  
Class of Stock [Line Items]                  
Stock option granted 160,866                
Exercise price of stock option $ 6.00                
Stock option plan expense           $ 13,464      
ThinkEquity [Member]                  
Class of Stock [Line Items]                  
Common stock issued   1,350,000              
Common stock par value   $ 0.001              
Public offering price   $ 6.00              
ThinkEquity [Member] | Over-Allotment Option [Member]                  
Class of Stock [Line Items]                  
Common stock issued   202,500   192,188          
Common stock par value       $ 6.00          
Closing date of public offering   Feb. 18, 2020   Feb. 21, 2020          
2016 Plan [Member]                  
Class of Stock [Line Items]                  
Shares available for grant             178,572    
Employees and directors [Member]                  
Class of Stock [Line Items]                  
Stock-based compensation expense             $ 8,100 $ 21,892  
Board of Directors [Member]                  
Class of Stock [Line Items]                  
Total compensation cost for stock options not yet recognized             29,298    
Total compensation cost for stock options not yet recognized, expensed during remaining quarters of 2020             15,834    
Total compensation cost for stock options not yet recognized, expensed 2021             $ 13,464    
Stock option granted     8,572       8,572    
Exercise price of stock option     $ 14.00       $ 14.00    
President and Chief Operating Officer [Member]                  
Class of Stock [Line Items]                  
Options forfeited               14,286  
Shareholder [Member]                  
Class of Stock [Line Items]                  
Warrants to purchase shares of common stock              
Proceeds from warrants exercise         $ 1,650,000      
Reduced exercise price         $ 7.70     $ 7.70  
Strike price         $ 9.10     $ 9.10  
Maximum number of shares was increased               321,429  
Warrant [Member]                  
Class of Stock [Line Items]                  
Warrants to purchase shares of common stock         214,286     214,286  
Proceeds from warrants exercise               $ 1,650,000