Organization FDIC Loss Share Agreements (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2014
Schedule of FDIC Loss Sharing Asset [Line Items]
Date of asset-based lending companies reorganization & sale of Celtic Corporation	Jul. 01, 2014
Affinity Bank [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Threshold of covered assets per FDIC loss-share agreement		234
Affinity Bank [Member] | Below threshold [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
FDIC Indemnification rate on covered assets		80.00%
Recovery rate of assuming bank on covered assets		80.00%
Affinity Bank [Member] | Above threshold [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
FDIC Indemnification rate on covered assets		95.00%
Recovery rate of assuming bank on covered assets		95.00%
Affinity Bank [Member] | Commercial Real Estate [Member] | FDIC indemnification provision under loss share arrangement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Sep. 30, 2014
Affinity Bank [Member] | Commercial Real Estate [Member] | Recovery provision for assuming bank under FDIC loss-share agreement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Sep. 30, 2017
Affinity Bank [Member] | Residential Mortgage [Member] | FDIC indemnification provision under loss share arrangement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Sep. 30, 2019
Affinity Bank [Member] | Residential Mortgage [Member] | Recovery provision for assuming bank under FDIC loss-share agreement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Sep. 30, 2019
Los Padres Bank [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
FDIC Indemnification rate on covered assets		80.00%
Recovery rate of assuming bank on covered assets		80.00%
Los Padres Bank [Member] | Commercial Real Estate [Member] | FDIC indemnification provision under loss share arrangement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Sep. 30, 2015
Los Padres Bank [Member] | Commercial Real Estate [Member] | Recovery provision for assuming bank under FDIC loss-share agreement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Sep. 30, 2018
Los Padres Bank [Member] | Residential Mortgage [Member] | FDIC indemnification provision under loss share arrangement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Sep. 30, 2020
Los Padres Bank [Member] | Residential Mortgage [Member] | Recovery provision for assuming bank under FDIC loss-share agreement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Sep. 30, 2020
Western Commercial Bank [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
FDIC Indemnification rate on covered assets		80.00%
Recovery rate of assuming bank on covered assets		80.00%
Western Commercial Bank [Member] | Commercial Real Estate [Member] | FDIC indemnification provision under loss share arrangement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Dec. 31, 2015
Western Commercial Bank [Member] | Commercial Real Estate [Member] | Recovery provision for assuming bank under FDIC loss-share agreement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Dec. 31, 2018
San Luis Trust Bank [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
FDIC Indemnification rate on covered assets		80.00%
Recovery rate of assuming bank on covered assets		80.00%
San Luis Trust Bank [Member] | Commercial Real Estate [Member] | FDIC indemnification provision under loss share arrangement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Mar. 31, 2016
San Luis Trust Bank [Member] | Commercial Real Estate [Member] | Recovery provision for assuming bank under FDIC loss-share agreement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Mar. 31, 2019
San Luis Trust Bank [Member] | Residential Mortgage [Member] | FDIC indemnification provision under loss share arrangement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Mar. 31, 2021
San Luis Trust Bank [Member] | Residential Mortgage [Member] | Recovery provision for assuming bank under FDIC loss-share agreement [Member]
Schedule of FDIC Loss Sharing Asset [Line Items]
Expiration date of provision		Mar. 31, 2021