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Estimates:
6 Months Ended
Jun. 30, 2011
Estimates: [Abstract]  
Estimates:
Estimates:
To prepare financial statements in conformity with U.S. GAAP, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and future results could differ. The allowance for loan losses, deferred tax assets, carrying amount of goodwill and fair values of financial instruments are particularly subject to change.