XML 97 R58.htm IDEA: XBRL DOCUMENT v2.4.1.9
Loans, Allowance for Loan Losses and Credit Quality (Textual) (Details) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Days to be termed as non accrual loans 90 days  
Tdrs Recorded Investment On Nonaccrual Status $ 4,899,000indb_TdrsRecordedInvestmentOnNonaccrualStatus $ 5,248,000indb_TdrsRecordedInvestmentOnNonaccrualStatus
Loans Allowance for Loan Losses and Credit Quality (Textual) [Abstract]    
The amount of deferred fees $ 3,100,000us-gaap_AmortizationOfDeferredLoanOriginationFeesNet $ 2,800,000us-gaap_AmortizationOfDeferredLoanOriginationFeesNet