XML 33 R12.htm IDEA: XBRL DOCUMENT

Federal Home Loan Bank of San Francisco Stock	12 Months Ended
Federal Home Loan Bank of San Francisco Stock	Dec. 31, 2011
Federal Home Loan Bank of San Francisco Stock [Abstract]
Federal Home Loan Bank of San Francisco Stock	3. Federal Home Loan Bank of San Francisco Stock The Bank is a member of the FHLB system. Members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional amounts. FHLB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as income. FHLB stock is reported in Other Assets and Interest Receivable on the Company's Consolidated Balance Sheets and totaled $7.0 million at December 31, 2011 and $6.2 million at December 31, 2010.