Hanmi Financial Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	$ 858,064us-gaap_AvailableForSaleSecurities	$ 1,060,717us-gaap_AvailableForSaleSecurities	$ 520,990us-gaap_AvailableForSaleSecurities
Mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	492,896	573,286
U.S. government agency securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	63,355	128,207
Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	16,984	16,948
U.S treasury securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	163	163
Other securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	23,100	22,893
Equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	416	414
SBA loan pools securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	75,027	109,447
Municipal bonds-tax exempt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	3,676	4,390
Municipal bonds-taxable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	17,042	16,922
Collateralized mortgage obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	165,405	188,047
Recurring Basis [Member] \| Quoted Prices in Active Markets for Identical Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	63,518	128,370
Recurring Basis [Member] \| Quoted Prices in Active Markets for Identical Assets [Member] \| U.S. government agency securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	63,355	128,207
Recurring Basis [Member] \| Quoted Prices in Active Markets for Identical Assets [Member] \| U.S treasury securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	163	163
Recurring Basis [Member] \| Significant Observable Inputs with No Active Market with Identical Characteristics [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	794,130	931,224
Recurring Basis [Member] \| Significant Observable Inputs with No Active Market with Identical Characteristics [Member] \| Mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	492,896	573,286
Recurring Basis [Member] \| Significant Observable Inputs with No Active Market with Identical Characteristics [Member] \| Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	16,984	16,948
Recurring Basis [Member] \| Significant Observable Inputs with No Active Market with Identical Characteristics [Member] \| Other securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	23,100	22,893
Recurring Basis [Member] \| Significant Observable Inputs with No Active Market with Identical Characteristics [Member] \| SBA loan pools securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	75,027	109,447
Recurring Basis [Member] \| Significant Observable Inputs with No Active Market with Identical Characteristics [Member] \| Municipal bonds-tax exempt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	3,676	3,681
Recurring Basis [Member] \| Significant Observable Inputs with No Active Market with Identical Characteristics [Member] \| Municipal bonds-taxable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	17,042	16,922
Recurring Basis [Member] \| Significant Unobservable Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	416	1,123
Recurring Basis [Member] \| Significant Unobservable Inputs [Member] \| Equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	416	414
Recurring Basis [Member] \| Significant Unobservable Inputs [Member] \| Municipal bonds-tax exempt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale		709
Recurring Basis [Member] \| Collateralized mortgage obligations [Member] \| Significant Observable Inputs with No Active Market with Identical Characteristics [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	$ 165,405	$ 188,047