Note 7 - Fair Value of Financial Instruments (Details) - SBA Servicing Assets [Member]	Sep. 30, 2015	Dec. 31, 2014
Note 7 - Fair Value of Financial Instruments (Details) [Line Items]
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Key Assumptions, Percent	10.00%	10.00%
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Key Assumptions	20.00%	20.00%

The measurement of the hypothetical financial impact of a 10 percent adverse changes in key assumptions on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date.

No definition available.

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Namespace Prefix:	frbk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant