Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Schedule of weighted average number of shares outstanding

	Twelve Months Ended December 31
	2012	2011	2010
Weighted average number of shares outstanding:
Common stock	20,043,862	19,890,838	18,515,958
Common stock equivalents-stock options, grants	75,114	64,422	55,349
Diluted shares outstanding	20,118,976	19,955,260	18,571,307