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8. STOCK INCENTIVE PLAN (Tables)
12 Months Ended
Dec. 31, 2014
Stock Incentive Plan Tables  
Stock options outstanding
    2014     2013  
    Weighted Average Exercise     Weighted Average Exercise  
    Shares     Price     Shares     Price  
                         
Outstanding at beginning of period     260,200     $ 3.82       311,200     $ 3.76  
Granted     -       -       -       -  
Exercised     (37,229 )     3.99       (51,000 )     3.48  
Forfeited     -       -       -       -  
                                 
Outstanding at end of period     222,971     $ 3.79       260,200     $ 3.82  
Stock options outstanding vested and expected to vest
    2014     2013  
             
Intrinsic value of options exercised in the period   $ 64,383     $ 92,952  
Stock options fully vested and expected to vest     222,971       260,200  
Weighted average exercise price   $ 3.79     $ 3.82  
Aggregate intrinsic value   $ 447,611     $ 642,548  
Weighted average contractual term of options   1.64 years     2.47 years  
Stock options vested and currently exercisable     188,971       199,200  
Weighted average exercise price   $ 3.90     $ 4.01  
Aggregate intrinsic value   $ 358,561     $ 453,528  
Weighted average contractual term of options   1.28 years     1.92 years  
Weighted-average options outstanding and exercisable
      Options Outstanding     Options Exercisable  
            Weighted                    
      Number     Average     Weighted     Number     Weighted  
      Outstanding at     Remaining     Average     Exercisable at     Average  
Exercise     December 31,     Contractual     Exercise     December 31,     Exercise  
Price     2014     Life     Price     2014     Price  
  2.99       4,000       0.12       2.99       4,000       2.99  
  3.09       22,971       6.56       3.09       8,971       3.09  
  3.24       80,000       1.55       3.24       60,000       3.24  
  3.76       62,000       0.58       3.76       62,000       3.76  
  5.00       54,000       0.99       5.00       54,000       5.00  
                                             
$2.99 - $ 5.00       222,971       1.64     $ 3.79       188,971     $ 3.90