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Summary Revolving Line of Credit And Various Notes Payable Constitute Short-Term and Long-Term Loan Balances Together (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Extinguishment of Debt [Line Items]    
Revolving line of credit, Long Term $ 66,400 $ 69,000
Revolving line of credit, Short-term 0 0
Revolving line of credit 66,400 69,000
Deferred loan fees, Long Term (637) (679)
Deferred loan fees, Short-term 0 0
Deferred loan fees (637) (679)
Notes payable, Long Term 0 0
Notes payable, Short-term 37 55
Notes payable 37 55
Long Term debt 65,763 68,321
Short-term 37 55
Total indebtedness $ 65,800 $ 68,376