Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Summary Of Significant Accounting Policies [Abstract]

Summary of weighted average number of shares used in computing earnings per common share and effect on weighted average number of shares of dilutive potential common stock

The following shows the weighted average number of shares used in computing earnings per common share and the effect on the weighted average number of shares of dilutive potential common stock. Potential dilutive common stock had no effect on income available to common stockholders.

	2012	2011	2010
Average number of common shares outstanding	6,942,411	6,936,869	6,933,474
Effect of dilutive options	17,456	13,994	16,462
Average number of common shares outstanding used to calculate diluted earnings per common share	6,959,867	6,950,863	6,949,936