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6. STOCK BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2016
Stock Based Compensation Tables  
Value of outstanding stock options
    Three months ended  
    March 31, 2016  
             
    Weighted Average Exercise  
    Shares     Price  
             
Outstanding at beginning of period     67,000     $ 3.22  
Granted     -       -  
Exercised     (36,843 )     3.24  
Forfeited     -       -  
                 
Outstanding at end of period     30,157     $ 3.19