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13. STOCK-BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of stock option transactions
   

Number of Option

and Warrants

Outstanding and exercisable

 

Weighted- Average Exercise price of Option

and Warrants

   

Range of

Exercise Price per Common Share

 
Balance, December 31, 2013     2,470,971     $3.36       $0.95 - $12.60  

Granted and vested during the year

ended December 31, 2014

    735,000     $1.05       $0.98 - $2.55  

Exercised during the year ended

December 31, 2014

    (223,000 )   $0.95       $0.95  

Expired during the

year ended December 31, 2014

    (238,971 )   $9.56       $2.41 - $12.00  
Balance, December 31, 2014     2,744,000     $2.38       $0.95 - $12.60  

Granted and vested during the year

ended December 31, 2015

    655,000     $1.49       $1.43 - $2.55  

Exercised during the year ended

December 31, 2015

    (182,500 )   $1.12       $0.95-$1.66  

Expired during the

year ended December 31, 2015

    (817,500 )   $4.86       $2.06 - $4.97  
Balance, December 31, 2015     2,399,000     $1.39       $0.95 - $12.60  
Schedule Stock and Warrants Options Outstanding
    Stock and Warrants Options Exercisable and Outstanding
            Weighted Average   Weighted Average
    Outstanding       Remaining   Exercise Price of
   

at December 31,

 2015

 

Range of

Exercise Prices

 

Contractual Life

 (Years)

 

Options Currently

 Outstanding

Exercisable and outstanding   2,399,000   $0.95 - $12.60   2.12   $1.39