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

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail) (Nonrecurring Basis [Member], USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized Losses on Non-performing Loans Held for Sale	$ 3,747,000	$ 2,903,000
Unrealized Losses Impaired Loans	580,000	7,364,000
Unrealized Losses Other Real Estate Owned	301,000	488,000
Quoted Prices in Active Markets for Identical Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-Performing Loans Held for sale
Impaired Loans
Other Real Estate Owned
Significant Observable Inputs With No Active Market With Identical Characteristics [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-Performing Loans Held for sale	484,000	17,525,000
Impaired Loans	27,844,000	54,784,000
Other Real Estate Owned	774,000	180,000
Significant Unobservable Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-Performing Loans Held for sale
Impaired Loans	8,888,000	35,835,000
Other Real Estate Owned