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Common Stock Repurchase Plan	12 Months Ended
Common Stock Repurchase Plan	Dec. 31, 2012
Common Stock Repurchase Plan [Abstract]
Common Stock Repurchase Plan	19. Common Stock Repurchase Plan On May 16, 2007, the Company's Board of Directors approved a plan to repurchase, as conditions warrant, up to 721,598 shares of the Company's common stock on the open market or in privately negotiated transactions. The repurchase plan represents approximately 5.00% of the Company's currently outstanding common stock. The duration of the program is open-ended and the timing of purchases will depend on market conditions. As of December 31, 2012, there were 624,739 shares available for repurchase. As a condition of the Written Agreement entered into with the Federal Reserve Bank of San Francisco (FRB) on May 23, 2010, and the Order entered into with the California Department of Financial Institutions (DFI) on May 17, 2010, the Company may not repurchase any of its common stock without prior approval of the FRB and the DFI. The Company did not repurchase any common shares during the year ended December 31, 2012 or 2011.