Hanmi Financial Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		12 Months Ended	3 Months Ended
	Mar. 31, 2014	Jun. 30, 2013	Dec. 31, 2014	Mar. 31, 2010
Accounting Policies [Line Items]
Period of utilization rate and historical loss rates used for breaking down commitments by loan type	48 months	36 months
Business combination, date of completion			Under the acquisition method of accounting in accordance with ASC Topic 805, “Business Combinations.” Under the acquisition method, the acquiring entity in a business combination recognizes 100 percent of the acquired assets and assumed liabilities, regardless of the percentage owned, at their estimated fair values as of the date of acquisition. Any excess of the purchase price over the fair value of net assets and other identifiable intangible assets acquired is recorded as goodwill. To the extent the fair value of net assets acquired, including other identifiable assets, exceeds the purchase price, a bargain purchase gain is recognized. Assets acquired and liabilities assumed from contingencies must also be recognized at fair value, if the fair value can be determined during the measurement period. Results of operations of an acquired business are included in the statement of earnings from the date of acquisition. Acquisition-related costs, including conversion and restructuring charges, are expensed as incurred.
Hanmi Bank [Member]
Accounting Policies [Line Items]
Number of shares exchanged for each of the Bank's share			1
General loan pools [Member]
Accounting Policies [Line Items]
Number of loan pools			11
Homogeneous loan pools [Member]
Accounting Policies [Line Items]
Number of loan pools			3
Nonperforming Financing Receivable [Member] \| Non-PCI Loans [Member]
Accounting Policies [Line Items]
Delinquency period of loans with respect to interest or principal for discontinuance of accrual of interest income			90 days
Maximum [Member]
Accounting Policies [Line Items]
Period of utilization rate and historical loss rates used for breaking down commitments by loan type				36 months
Maximum [Member] \| Cash and Cash Equivalents [Member]
Accounting Policies [Line Items]
Delinquency period of loans with respect to interest or principal for discontinuance of accrual of interest income			90 days
Minimum [Member]
Accounting Policies [Line Items]
Period of utilization rate and historical loss rates used for breaking down commitments by loan type				24 months
CANADA \| Full Service [Member]
Accounting Policies [Line Items]
Number of branches			49
Most recent four quarters [Member]
Accounting Policies [Line Items]
Risk factor calculations	8.00%	50.00%		60.00%
Next four quarters [Member]
Accounting Policies [Line Items]
Risk factor calculations	31.00%	33.00%
Oldest four quarters [Member]
Accounting Policies [Line Items]
Risk factor calculations	46.00%	17.00%		40.00%
Third four quarters [Member]
Accounting Policies [Line Items]
Risk factor calculations	15.00%