Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Reconciliation and Income Statement Classification of Gains and Losses for All Assets and Liabilities (Detail)

v2.4.0.8
Fair Value Measurements - Reconciliation and Income Statement Classification of Gains and Losses for All Assets and Liabilities (Detail) (USD $)
9 Months Ended
Sep. 30, 2014
Stock warrants [Member]
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Beginning Balance $ 2,000
Purchases, Issuances and Settlement (2,000)
Realized Gains or Losses in Earnings   
Unrealized Gains or Losses in Other Comprehensive Income   
Municipal bonds-tax exempt [Member]
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Beginning Balance 748,000
Realized Gains or Losses in Earnings   
Unrealized Gains or Losses in Other Comprehensive Income (30,000)
Ending Balance 718,000
Equity security [Member]
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Purchases, Issuances and Settlement 450,000
Realized Gains or Losses in Earnings   
Ending Balance $ 450,000