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Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Series A Term Note [Member]
  
Debt Instrument [Line Items]  
Annual term note payment $ 2,100,000
Quarterly paid interest rate 10.50%
Maturity date Feb. 25, 2014
Series B Term Note [Member]
  
Debt Instrument [Line Items]  
Annual term note payment 1,500,000
Quarterly paid interest rate 10.22%
Maturity date Jun. 21, 2014
Series C Term Note [Member]
  
Debt Instrument [Line Items]  
Annual term note payment 1,400,000
Quarterly paid interest rate 9.11%
Maturity date Oct. 26, 2014
Series D Term Note [Member]
  
Debt Instrument [Line Items]  
Annual term note payment $ 643,000
Quarterly paid interest rate 9.07%
Maturity date Jan. 24, 2015