Quarterly report pursuant to Section 13 or 15(d)

Basic and Diluted Net Income (Loss) Per Common Share (Details)

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Basic and Diluted Net Income (Loss) Per Common Share (Details) (USD $)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Basic and Diluted Net Income (Loss) Per Common Share [Abstract]          
Net income (loss) $ (2,209,000) $ (899,000) $ (17,026,000) $ 3,322,000 $ 1,551,000
Weighted average shares outstanding (in shares) 532,258 508,655 524,595 502,349  
Basic net income (loss) per common share (in dollars per share) $ (4.15) $ (1.77) $ (32.46) $ 6.61  
Net income (loss) $ (2,209,000) $ (899,000) $ (17,026,000) $ 3,322,000  
Weighted average shares outstanding (in shares) 532,258 508,655 524,595 502,349  
Effect of dilutive options and warrants (in shares) 0 0 0 4,784  
Weighted average shares outstanding assuming dilution (in shares) 532,258 508,655 524,595 507,133  
Diluted net income (loss) per common share (in dollars per share) $ (4.15) $ (1.77) $ (32.46) $ 6.55  
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive securities not included in computation of diluted net income (loss) per common share (in shares) 2,528,938 2,328,420 2,528,938 2,317,420  
Warrants [Member]
          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive securities not included in computation of diluted net income (loss) per common share (in shares) 577,756 712,879 577,756 712,879  
Stock options [Member]
          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive securities not included in computation of diluted net income (loss) per common share (in shares) 393,834 50,196 393,834 39,196  
Preferred Stock - A [Member]
          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive securities not included in computation of diluted net income (loss) per common share (in shares) 1,157,348 1,165,345 1,157,348 1,165,345  
Preferred Stock - B [Member]
          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive securities not included in computation of diluted net income (loss) per common share (in shares) 400,000 400,000 400,000 400,000