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Assets Held for Sale and Discontinued Operations (Tables)
9 Months Ended
Sep. 30, 2013
Discontinued Operations and Disposal Groups [Abstract]  
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures
Revenue and income before income taxes of the Idaho-based operations for the three months ended September 30, 2012 and the nine months ended September 30, 2013 and 2012 are as follows (in thousands):
 
Three Months Ended September 30, 2012
 
Nine Months Ended September 30,
 
 
    2013(a)
 
2012
 
 
 
 
 
 
Revenue
$
1,984

 
$
674

 
$
5,927

Income (loss) before income taxes
$
406

 
$
477

 
$
1,075

A summary of assets and liabilities held for sale at December 31, 2012 is as follows (in thousands):
 
December 31, 2012
 
 
Assets held for sale:
 
Accounts receivable, net
$
261

Prepaid expenses
37

Other current assets
3

Property, plant and equipment (net of $4.6 million accumulated depreciation)
6,441

Other assets
5,807

Total assets held for sale
$
12,549

 
 
Liabilities held for sale:
 
Accounts payable
$
137

Other accrued liabilities
148

Other long-term liabilities
122

Total liabilities held for sale
$
407