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           Supplemental Disclosure for Statements of Cash Flows - Additional Information " (Detail) (USD $) 
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        6 Months Ended | |
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           Jun. 30, 2012 
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           Jun. 30, 2011 
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| Cash Flow Supplemental Disclosures | ||
| Interest Paid | $ 302,000 | $ 3,000 | 
| Issued stock to 401(k) plan | 17,390 | 30,348 | 
| Transfer of Business Inventory to fixed assets | $ 23,000 | |
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- Details 
          
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- Definition 
          Inventory Transfers To Fixed Assets And Service Inventory No definition available. 
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- Definition 
          Number of shares issued during the period to employees as employer's contribution to the company's ESOP and 401(k) plans. No definition available. 
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- Definition 
          The amount of cash paid for interest during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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