Quarterly report pursuant to Section 13 or 15(d)

Regulatory Matters - Additional Information (Detail)

v3.20.1
Regulatory Matters - Additional Information (Detail)
Mar. 31, 2020
Dec. 31, 2019
Jan. 01, 2019
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Minimum ratio of qualifying total capital to risk-weighted assets 8.00%    
Minimum ratio of Tier 1 capital to risk-weighted assets 6.00%    
Leverage ratio 4.00%    
Minimum ratio of qualifying total capital to risk-weighted assets for well capitalized 10.00%    
Minimum ratio of Tier 1 capital to average assets for well capitalized 8.00%    
Capital conservation buffer (percent) 5.52% 5.78% 2.50%
Hanmi Bank      
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Minimum ratio of qualifying total capital to risk-weighted assets 8.00% 8.00%  
Minimum ratio of Tier 1 capital to risk-weighted assets 6.00% 6.00%  
Leverage ratio 4.00% 4.00%  
Minimum ratio of qualifying total capital to risk-weighted assets for well capitalized 10.00% 10.00%  
Minimum ratio of Tier 1 capital to average assets for well capitalized 8.00% 8.00%  
Capital conservation buffer (percent) 6.29% 6.64%  
Depository Institutions      
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Leverage ratio 5.00%