Loans (Details 6) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Loans with classification of special mention, substandard and doubtful by loan type
Loans	$ 249,554,000	$ 258,292,000
Loans, SBA guaranteed portions	14,300,000	16,400,000
Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	168,023,000	172,204,000
Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	81,531,000	86,088,000
Construction | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans		2,471,000
Real Estate Secured | Residential Real Estate | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	3,063,000	2,508,000
Real Estate Secured | Residential Real Estate | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,071,000	1,228,000
Real Estate Secured | SBA Real Estate | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	8,086,000	9,924,000
Real Estate Secured | SBA Real Estate | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	8,103,000	6,755,000
Real Estate Secured | Gas Station | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	8,059,000	8,122,000
Real Estate Secured | Gas Station | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	6,263,000	6,301,000
Real Estate Secured | Carwash | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	11,140,000	11,207,000
Real Estate Secured | Carwash | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	12,897,000	13,691,000
Real Estate Secured | Hotel/Motel | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	5,882,000	7,234,000
Real Estate Secured | Hotel/Motel | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	8,899,000	10,635,000
Real Estate Secured | Land | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	922,000	928,000
Real Estate Secured | Other | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	91,341,000	91,154,000
Real Estate Secured | Other | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	30,742,000	29,177,000
Commercial & Industrial | SBA Commercial | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	3,257,000	3,138,000
Commercial & Industrial | SBA Commercial | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,902,000	2,575,000
Commercial & Industrial | Other Commercial | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	36,271,000	35,516,000
Commercial & Industrial | Other Commercial | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	11,503,000	15,571,000
Consumer | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	2,000	2,000
Consumer | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	151,000	155,000
Special Mention
Loans with classification of special mention, substandard and doubtful by loan type
Loans	101,627,000	100,798,000
Special Mention | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	65,364,000	59,624,000
Special Mention | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	36,263,000	41,174,000
Special Mention | Real Estate Secured | SBA Real Estate | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	2,586,000	4,314,000
Special Mention | Real Estate Secured | SBA Real Estate | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	2,483,000	3,587,000
Special Mention | Real Estate Secured | Gas Station | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,149,000	1,158,000
Special Mention | Real Estate Secured | Gas Station | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	2,418,000	2,434,000
Special Mention | Real Estate Secured | Carwash | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	11,469,000	12,256,000
Special Mention | Real Estate Secured | Hotel/Motel | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,875,000	2,508,000
Special Mention | Real Estate Secured | Hotel/Motel | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,100,000	2,432,000
Special Mention | Real Estate Secured | Land | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	264,000	266,000
Special Mention | Real Estate Secured | Other | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	34,422,000	33,886,000
Special Mention | Real Estate Secured | Other | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	16,502,000	15,912,000
Special Mention | Commercial & Industrial | SBA Commercial | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,451,000	1,364,000
Special Mention | Commercial & Industrial | SBA Commercial | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,019,000	950,000
Special Mention | Commercial & Industrial | Other Commercial | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	23,617,000	16,128,000
Special Mention | Commercial & Industrial | Other Commercial | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,130,000	3,448,000
Special Mention | Consumer | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	142,000	155,000
Substandard
Loans with classification of special mention, substandard and doubtful by loan type
Loans	127,996,000	149,479,000
Substandard | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	85,266,000	105,912,000
Substandard | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	42,730,000	43,567,000
Substandard | Construction | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans		2,471,000
Substandard | Real Estate Secured | Residential Real Estate | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	2,459,000	2,342,000
Substandard | Real Estate Secured | Residential Real Estate | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,071,000	1,228,000
Substandard | Real Estate Secured | SBA Real Estate | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	5,165,000	5,100,000
Substandard | Real Estate Secured | SBA Real Estate | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	4,488,000	2,894,000
Substandard | Real Estate Secured | Gas Station | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	6,068,000	6,115,000
Substandard | Real Estate Secured | Gas Station | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	3,845,000	3,867,000
Substandard | Real Estate Secured | Carwash | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	10,370,000	10,437,000
Substandard | Real Estate Secured | Carwash | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,428,000	1,435,000
Substandard | Real Estate Secured | Hotel/Motel | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	2,593,000	4,571,000
Substandard | Real Estate Secured | Hotel/Motel | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	7,047,000	7,443,000
Substandard | Real Estate Secured | Land | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	658,000	662,000
Substandard | Real Estate Secured | Other | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	43,529,000	53,089,000
Substandard | Real Estate Secured | Other | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	13,602,000	12,968,000
Substandard | Commercial & Industrial | SBA Commercial | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,806,000	1,774,000
Substandard | Commercial & Industrial | SBA Commercial | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	867,000	1,609,000
Substandard | Commercial & Industrial | Other Commercial | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	12,616,000	19,349,000
Substandard | Commercial & Industrial | Other Commercial | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	10,373,000	12,123,000
Substandard | Consumer | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	2,000	2,000
Substandard | Consumer | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	9,000
Doubtful
Loans with classification of special mention, substandard and doubtful by loan type
Loans	19,931,000	8,015,000
Doubtful | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	17,393,000	6,668,000
Doubtful | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	2,538,000	1,347,000
Doubtful | Real Estate Secured | Residential Real Estate | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	604,000	166,000
Doubtful | Real Estate Secured | SBA Real Estate | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	335,000	510,000
Doubtful | Real Estate Secured | SBA Real Estate | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,132,000	274,000
Doubtful | Real Estate Secured | Gas Station | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	842,000	849,000
Doubtful | Real Estate Secured | Carwash | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	770,000	770,000
Doubtful | Real Estate Secured | Hotel/Motel | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	1,414,000	155,000
Doubtful | Real Estate Secured | Hotel/Motel | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	752,000	760,000
Doubtful | Real Estate Secured | Other | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	13,390,000	4,179,000
Doubtful | Real Estate Secured | Other | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	638,000	297,000
Doubtful | Commercial & Industrial | SBA Commercial | Acquired Loans
Loans with classification of special mention, substandard and doubtful by loan type
Loans	16,000	16,000
Doubtful | Commercial & Industrial | Other Commercial | Legacy Wilshire
Loans with classification of special mention, substandard and doubtful by loan type
Loans	$ 38,000	$ 39,000