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SHAREHOLDERS' EQUITY (Details) (USD $)
 0 Months Ended 3 Months Ended 12 Months Ended
May 14, 2012
May 14, 2010
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Numerator:                          
Net income (loss) (in dollars)     $ 4,150 $ 1,112 $ (1,974) $ 12,384 $ 3,436 $ 1,047 $ 587 $ 5,764 $ 15,671,879 $ 10,833,215 $ (1,222,682)
Denominator:                          
Basic - weighted average common shares outstanding                     20,489,179 20,205,524 20,162,944
Effect of Dilutive Securities:                          
Stock options                     366,417 317,063  
Diluted - weighted average common shares outstanding                     20,855,596 20,522,587 20,162,944
Basic EPS (in dollars per share)     $ 0.20 $ 0.05 $ (0.10) $ 0.61 $ 0.17 $ 0.05 $ 0.03 $ 0.29 $ 0.76 $ 0.54 $ (0.06)
Diluted EPS (in dollars per share)     $ 0.20 $ 0.05 $ (0.10) $ 0.60 $ 0.17 $ 0.05 $ 0.03 $ 0.28 $ 0.75 $ 0.53 $ (0.06)
Other disclosures                          
Outstanding options that were not included in the diluted calculation because their effect would be anti-dilutive (in shares)                     44,370 161,835  
Percentage of dividend paid on common stock 5.00% 5.00%                 5.00%   5.00%