Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Consolidated Balance Sheets [Abstract]
Securities held to maturity, estimated fair value	$ 5,472	$ 4,345
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	3,409,056	3,373,793
Common stock, shares outstanding	3,397,873	3,372,949
Treasury stock, shares	11,183	844