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

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Parenthetical) (Detail) (Non-recurring Basis [Member], USD $)	Mar. 31, 2015	Dec. 31, 2014
Impaired Loans [Member] \| Real estate loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 30,100,000	$ 30,000,000
Impaired Loans [Member] \| Commercial and industrial loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	1,100,000	1,200,000
Impaired Loans [Member] \| Consumer loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	1,800,000	1,700,000
Other Real Estate Owned [Member] \| Commercial property loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-performing loans held for sale	12,000,000	13,200,000
Other Real Estate Owned [Member] \| Residential property loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-performing loans held for sale	$ 163,000	$ 2,600,000