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

Fair Value Measurements - Additional Information (Detail)

Fair Value Measurements - Additional Information (Detail) - USD ($)	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	$ 4,158,000	$ 8,677,000	$ 5,451,000	$ 3,842,000	$ 390,000	$ 0
Investment in FRB stock	13,517,000		12,273,000
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unpaid principal balance of Non-accrual Non-PCI loans reviewed individually for amount of impairment	100,000
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unpaid principal balance of Non-accrual Non-PCI loans reviewed collectively for amount of impairment	100,000
Fair Value, Inputs, Level 2 [Member] \| Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in FHLB stock	16,385,000		17,580,000
Investment in FRB stock	13,517,000		12,273,000
Fair Value, Inputs, Level 2 [Member] \| Non-recurring Basis [Member] \| Non-Performing Loans Held for Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	0		0
Fair Value, Inputs, Level 2 [Member] \| Non-recurring Basis [Member] \| Small Business Administration Loans Held for Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	$ 4,200,000		$ 5,500,000