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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Earnings per share      
Stock options excluded from calculation of diluted EPS 1,373,345    
Net income (loss) $ (4,132,892) $ 1,418,482 $ 2,400,694
Preferred dividend requirements (918,108) (964,047) (1,370,620)
Effect of dilutive securities: Convertible debt interest and loan fees   (10,120)  
Earnings (loss) applicable to common shareholders $ (5,051,000) $ 454,435 $ 1,030,074
Average common shares outstanding 26,219,728 24,171,238 23,872,783
Dilutive stock equivalents from stock options (in shares)   2,101,825 2,376,091
Shares issuable upon conversion of convertible debt   81,723  
Average common and common equivalent shares outstanding - assuming dilution 26,219,728 26,354,786 26,248,874
Basic earnings per share (in dollars per share) $ (0.19) $ 0.02 $ 0.04
Diluted earnings per share (in dollars per share) $ (0.19) $ 0.02 $ 0.04