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ORGANIZATION (Details 2) (USD $)
In Millions, except Share data, unless otherwise specified
0 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 26, 2012
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Dec. 31, 2011
Special dividend paid (in dollars per share) $ 1.00                  
Effect of corrections on consolidated statement of operations                    
Weighted average basic shares outstanding   11,017,000 10,768,000 10,771,000 10,685,000 10,555,000 11,039,000 10,670,000 10,695,000 10,377,000
Weighted average diluted shares outstanding   11,720,000 11,557,000 11,385,000 10,685,000 10,555,000 11,039,000 10,670,000 10,695,000 10,377,000
Net income (loss) per share from continuing operations                    
Basic (in dollars per share)   $ 0.03 $ 0.23 $ 0.03 $ (0.16) $ (0.31) $ (0.18) $ (0.45) $ (0.21) $ (4.79)
Diluted (in dollars per share)   $ 0.03 $ 0.22 $ 0.02 $ (0.16) $ (0.31) $ (0.18) $ (0.45) $ (0.21) $ (4.79)
Net income (loss) per share from discontinuing operations                    
Basic (in dollars per share)   $ (0.05) $ (0.02) $ 0.38 $ 2.58 $ 1.65 $ 0.56 $ 4.60 $ 4.57 $ (0.94)
Diluted (in dollars per share)   $ (0.05) $ (0.02) $ 0.36 $ 2.58 $ 1.65 $ 0.56 $ 4.60 $ 4.57 $ (0.94)
Net income (loss) per share                    
Basic (in dollars per share)   $ (0.02) $ 0.22 $ 0.41 $ 2.41 $ 1.34 $ 0.38 $ 4.15 $ 4.36 $ (5.73)
Diluted (in dollars per share)   $ (0.02) $ 0.20 $ 0.38 $ 2.41 $ 1.34 $ 0.38 $ 4.15 $ 4.36 $ (5.73)
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares)   0   300,000     700,000 2,100,000 0 0
Effect of errors on consolidated balance sheet                    
Common stock, issued shares   12,505,331 12,195,209       12,505,331   12,195,209  
Common stock, outstanding shares   11,136,399 11,006,730       11,136,399   11,006,730  
Adjustment
                   
Net income (loss) per share                    
Error correction related to the control number utilized for diluted earnings per share (in shares)           241,000        
Error correction related to the control number utilized for diluted earnings per share (in dollar per share)           $ 0.03        
Release of restrictions on restricted stock awards | As Reported
                   
Effect of corrections on consolidated statement of operations                    
Weighted average basic shares outstanding     11,386,000 11,389,000 11,303,000 11,173,000     11,313,000 10,995,000
Weighted average diluted shares outstanding     12,175,000 12,003,000 11,303,000 11,414,000     11,313,000 10,995,000
Net income (loss) per share from continuing operations                    
Basic (in dollars per share)     $ 0.22 $ 0.02 $ (0.16) $ (0.29)     $ (0.20) $ (4.52)
Diluted (in dollars per share)     $ 0.21 $ 0.02 $ (0.16) $ (0.29)     $ (0.20) $ (4.52)
Net income (loss) per share from discontinuing operations                    
Basic (in dollars per share)     $ (0.02) $ 0.36 $ 2.44 $ 1.56     $ 4.32 $ (0.89)
Diluted (in dollars per share)     $ (0.02) $ 0.35 $ 2.44 $ 1.53     $ 4.32 $ (0.89)
Net income (loss) per share                    
Basic (in dollars per share)     $ 0.20 $ 0.38 $ 2.28 $ 1.27     $ 4.12 $ (5.41)
Diluted (in dollars per share)     $ 0.19 $ 0.37 $ 2.28 $ 1.24     $ 4.12 $ (5.41)
Effect of errors on consolidated balance sheet                    
Common stock, issued shares     12,625,678           12,625,678  
Common stock, outstanding shares     11,437,199           11,437,199  
Release of restrictions on restricted stock awards | Adjustment
                   
Effect of corrections on consolidated statement of operations                    
Weighted average basic shares outstanding     (618,000) (618,000) (618,000) (618,000)     (618,000) (618,000)
Weighted average diluted shares outstanding     (618,000) (618,000) (618,000) (859,000) [1]     (618,000) (618,000)
Net income (loss) per share from continuing operations                    
Basic (in dollars per share)     $ 0.01 $ 0.01 $ 0.00 $ (0.02)     $ (0.01) $ (0.27)
Diluted (in dollars per share)     $ 0.01 $ 0.00 $ 0.00 $ (0.02)     $ (0.01) $ (0.27)
Net income (loss) per share from discontinuing operations                    
Basic (in dollars per share)     $ 0.00 $ 0.02 $ 0.14 $ 0.09     $ 0.25 $ (0.05)
Diluted (in dollars per share)     $ 0.00 $ 0.01 $ 0.14 $ 0.12 [1]     $ 0.25 $ (0.05)
Net income (loss) per share                    
Basic (in dollars per share)     $ 0.02 $ 0.03 $ 0.13 $ 0.07     $ 0.24 $ (0.32)
Diluted (in dollars per share)     $ 0.01 $ 0.01 $ 0.13 $ 0.10 [1]     $ 0.24 $ (0.32)
Effect of errors on consolidated balance sheet                    
Common stock, issued shares     (430,469)           (430,469)  
Common stock, outstanding shares     (430,469)           (430,469)  
Release of restrictions on restricted stock awards | Chairman and CEO
                   
Dividend overpaid $ 0.4                  
Over accrual of dividend for unvested shares     $ 0.2           $ 0.2  
[1] Includes correction of an error of 241 shares and $0.03 per share made during the first quarter of 2012 related to the control number utilized for diluted earnings per share.