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           Subsequent Events (Detail Textual) (Revolving Credit Facility, Avidbank) 
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        1 Months Ended | 0 Months Ended | 
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           Apr. 30, 2012 
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           Apr. 15, 2014
 
          Subsequent Event 
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| Subsequent Event [Line Items] | ||
| Line of credit facility, expiration date | Apr. 15, 2014 | Jun. 15, 2014 | 
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- Definition 
          Date the credit facility terminates, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
          
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