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 6 Months Ended 12 Months Ended
Apr. 03, 2020
Feb. 12, 2020
Aug. 15, 2019
Feb. 20, 2020
Jun. 30, 2020
Mar. 31, 2020
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Class of Stock [Line Items]                  
Common stock issued           1,542,188 1,542,188    
Common stock par value         $ 0.001   $ 0.001   $ 0.001
Common stock issued, Value           $ 9,253,128 $ 9,250,000    
Total compensation cost for stock options not yet recognized         $ 282,142   $ 282,142    
Total compensation cost for stock options not yet recognized, period             1 year    
Stock option granted             310,290   8,572
Exercise price of stock option             $ 5.39   $ 14.00
Options forfeited             161,402   14,286
Stock options cancelled and replaced to employees             102,800    
Strike price of the cancelled options             $ 14.00    
Warrant [Member]                  
Class of Stock [Line Items]                  
Public offering price         $ 6.00   $ 6.00    
Percentage of strike price         150.00%   150.00%    
Strike price         $ 9.00   $ 9.00    
Shareholder [Member]                  
Class of Stock [Line Items]                  
Maximum number of shares was increased             321,429    
2016 Plan [Member]                  
Class of Stock [Line Items]                  
Shares available for grant         178,572   178,572    
Employees and directors [Member]                  
Class of Stock [Line Items]                  
Stock-based compensation expense             $ 199,070 $ 28,133  
Board of Directors [Member]                  
Class of Stock [Line Items]                  
Total compensation cost for stock options not yet recognized, period         1 year 9 months        
Strike price $ 4.74                
Stock option granted 310,290   8,572   310,290   8,572    
Exercise price of stock option $ 6.00   $ 14.00       $ 14.00    
Exercise Amount $ 149,424                
Options forfeited 161,402       161,402        
Stock option plan expense         $ 88,170   $ 370,312    
Board of Directors [Member] | Before Reclassification [Member]                  
Class of Stock [Line Items]                  
Stock option granted 160,866                
Options forfeited 536                
Board of Directors [Member] | Minimum [Member]                  
Class of Stock [Line Items]                  
Exercise price of stock option         $ 4.74        
Vesting Period 9 months                
Board of Directors [Member] | Maximum [Member]                  
Class of Stock [Line Items]                  
Exercise price of stock option         6.00        
Vesting Period 21 months                
President and Chief Operating Officer [Member]                  
Class of Stock [Line Items]                  
Options forfeited               14,286  
Employee stock options [Member]                  
Class of Stock [Line Items]                  
Strike price         4.74   $ 4.74    
Day of issuance         $ 4.70   $ 4.70    
Expected term             2 years 6 months    
Expected volatility             81.00%    
Dividend rate             0.255%    
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