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

Liquidity - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Oct. 31, 2011
Line of Credit Facility [Line Items]
FHLB advances amount	$ 3.0	$ 3.3
Percent of borrowing from FHLB	15.00%
Total borrowing capacity based on pledged collateral	317.5
Borrowing capacity available based on pledged collateral	314.5
Bank's FHLB borrowing	3.0
Borrowing percentage of total assets	0.11%
Carrying value for loans pledged by bank	90.8
Borrowings	0
Maximum borrowing capacity of line of credit			100.0
Parent [Member]
Line of Credit Facility [Line Items]
Amount of accrued interest payable on junior subordinated debentures	12.2	9.8
Liquid assets, including amounts deposits with the bank	30.2	31.7
Subsidiaries [Member]
Line of Credit Facility [Line Items]
Broker deposits	0
Fed Discount Window [Member]
Line of Credit Facility [Line Items]
Amount available from borrowing source	$ 56.1