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RESTATEMENT OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS (Details 3) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Restated condensed quarterly consolidated statement of operations          
Revenues $ 60,862 $ 55,045 $ 159,313 $ 165,799  
Cost of sales 55,147 52,097 146,366 158,155  
Restructuring 1,097 233 2,758 1,038  
Gross profit 4,618 2,715 10,189 6,606  
OPERATING EXPENSES:          
Selling, general and administrative 5,216 5,197 15,721 16,658  
Intangible amortization 111 664 1,441 1,094  
Regulatory settlement 1,500   1,500    
Restructuring 79 381 787 481  
Total operating expenses 6,906 6,242 19,449 18,233  
Operating loss (2,288) (3,527) (9,260) (11,627)  
OTHER INCOME (EXPENSE), net:          
Interest expense, net (177) (553) (795) (1,053)  
Other, net (4) 148 511 758  
(Loss) gain on sale of assets and restructuring (1) (15) 2,965 (86)  
Total other income (expense), net (182) (420) 2,681 (381)  
Net loss from continuing operations before provision for income taxes (2,470) (3,947) (6,579) (12,008)  
Provision (benefit) for income taxes 28 (9) 64 21  
LOSS FROM CONTINUING OPERATIONS (2,498) (3,938) (6,643) (12,029)  
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX 100   (110)    
NET LOSS (2,398) (3,938) (6,753) (12,029) (17,907)
NET LOSS PER COMMON SHARE - BASIC AND DILUTED:          
Loss from continuing operations (in dollars per share) $ (0.18) $ (0.28) $ (0.46) $ (0.86)  
Loss from discontinued operations (in dollars per share) $ 0.01   $ (0.01)    
Net loss (in dollars per share) $ (0.17) $ (0.28) $ (0.47) $ (0.86)  
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING - Basic and diluted 14,525 14,093 14,405 14,022  
As Previously Reported
          
Restated condensed quarterly consolidated statement of operations          
Revenues 62,436   159,463    
Cost of sales 56,783   147,399    
Restructuring 1,097   2,758    
Gross profit 4,556   9,306    
OPERATING EXPENSES:          
Selling, general and administrative 5,247   15,788    
Intangible amortization 111   1,441    
Regulatory settlement 1,500   1,500    
Restructuring 79   787    
Total operating expenses 6,937   19,516    
Operating loss (2,381)   (10,210)    
OTHER INCOME (EXPENSE), net:          
Interest expense, net (177)   (795)    
Other, net (4)   511    
(Loss) gain on sale of assets and restructuring (1)   2,965    
Total other income (expense), net (182)   2,681    
Net loss from continuing operations before provision for income taxes (2,563)   (7,529)    
Provision (benefit) for income taxes 28   64    
LOSS FROM CONTINUING OPERATIONS (2,591)   (7,593)    
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX 100   (110)    
NET LOSS (2,491)   (7,703)    
NET LOSS PER COMMON SHARE - BASIC AND DILUTED:          
Loss from continuing operations (in dollars per share) $ (0.18)   $ (0.53)    
Loss from discontinued operations (in dollars per share) $ 0.01   $ (0.01)    
Net loss (in dollars per share) $ (0.17)   $ (0.53)    
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING - Basic and diluted 14,525   14,405    
Restatement Adjustments
          
Restated condensed quarterly consolidated statement of operations          
Revenues (1,574)   (150)    
Cost of sales (1,636)   (1,033)    
Gross profit 62   883    
OPERATING EXPENSES:          
Selling, general and administrative (31)   (67)    
Total operating expenses (31)   (67)    
Operating loss 93   950    
OTHER INCOME (EXPENSE), net:          
Net loss from continuing operations before provision for income taxes 93   950    
LOSS FROM CONTINUING OPERATIONS 93   950    
NET LOSS $ 93   $ 950    
NET LOSS PER COMMON SHARE - BASIC AND DILUTED:          
Loss from continuing operations (in dollars per share) $ 0.00   $ 0.07    
Net loss (in dollars per share) $ 0.00   $ 0.07    
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING - Basic and diluted 14,525   14,405