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11. COMMON STOCK (Details Narrative) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Share-based compensation expense $ 33,551 $ 144,967
Two Directors [Member] | Restricted Stock [Member]    
Stock vested, shares 2,500  
Share-based compensation expense $ 18,750  
Two Directors [Member] | Common Stock Grant [Member]    
Unreleased shares of common stock 55,000  
Unrecognized restricted stock grant expense $ 481,250  
A Director [Member] | Restricted Stock [Member]    
Stock vested, shares 1,250  
Share-based compensation expense $ 12,500