XML 73 R80.htm IDEA: XBRL DOCUMENT v2.4.0.6
Note 15 - Regulatory Capital Requirements: (Detail)
Jun. 30, 2012
Jun. 30, 2011
Tier One Leverage Capital to Average Assets 14.00%  
California First National Bancorp [Member]
   
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets 6.00%  
Capital Required for Capital Adequacy to Risk Weighted Assets 10.00%  
Tier One Leverage Capital Required for Capital Adequacy to Average Assets 5.00%  
Tier One Leverage Capital to Average Assets 40.70% 38.40%
California First National Bank [Member]
   
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets 4.00%  
Capital Required for Capital Adequacy to Risk Weighted Assets 8.00%  
Tier One Leverage Capital to Average Assets 22.40% 20.80%