Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Additional Information (Detail)

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Acquisitions - Additional Information (Detail) (USD $)
 1 Months Ended 3 Months Ended 0 Months Ended 6 Months Ended 12 Months Ended 1 Months Ended 6 Months Ended
Dec. 31, 2013
Promissory Note
Scenario, Forecast
Jun. 30, 2014
Milbank
Jun. 30, 2013
Milbank
Dec. 31, 2013
Milbank
Mar. 28, 2013
Ten-Sixty
Jun. 30, 2014
Ten-Sixty
Dec. 31, 2013
Ten-Sixty
Apr. 30, 2013
Ten-Sixty
Promissory Note
Jun. 30, 2014
Ten-Sixty
Promissory Note
Installment
Business Acquisition [Line Items]                  
Fair value adjustments on acquired assets   $ 0   $ 148,000          
Liability for contingent consideration   784,000   1,295,000          
Contingent purchase price payment   511,000 462,000            
Acquisition of assets         1,900,000,000        
Cash consideration under Asset Purchase Agreement         2,500,000 2,500,000      
Promissory note issued         1,479,000        
Number of installments                 2
Installment amount payable 218,000             218,000  
Quarterly installments from June 30, 2014 through March 31, 2017                 87,000
Interest on principal amount                 5.00%
Costs related to acquisition             51,000    
Fair value of assets acquired           $ 0