Loans Receivable, Credit Quality for Loans and the Allowance for Loan Losses - Schedule of Number of TDRs and Recorded Investment in TDRs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013 Contract	Jun. 30, 2012 Contract	Jun. 30, 2013 Contract	Jun. 30, 2012 Contract
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings, Number of Contracts			16	16
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings, Number of Contracts				1
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment				$ 183
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment				183
Troubled Debt Restructurings That Subsequently Defaulted, Number of Contracts
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment
Commercial Real Estate Non-owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings, Number of Contracts
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment
Troubled Debt Restructurings That Subsequently Defaulted, Number of Contracts
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment
Commercial Real Estate Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings, Number of Contracts				1
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment				289
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment				289
Troubled Debt Restructurings That Subsequently Defaulted, Number of Contracts
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment
Commercial Real Estate 1-4 Family Investment [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings, Number of Contracts		2		2
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment		785		785
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment		785		785
Troubled Debt Restructurings That Subsequently Defaulted, Number of Contracts
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment
Commercial Land and Land Development [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings, Number of Contracts
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment
Troubled Debt Restructurings That Subsequently Defaulted, Number of Contracts
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings, Number of Contracts
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment
Troubled Debt Restructurings That Subsequently Defaulted, Number of Contracts
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment
Home Equity Lines of Credit [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings, Number of Contracts
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment
Troubled Debt Restructurings That Subsequently Defaulted, Number of Contracts
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings, Number of Contracts
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment
Troubled Debt Restructurings That Subsequently Defaulted, Number of Contracts
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment

Riverview Financial Corp 10-Q/A