Stock Compensation Plans (Details 2) (USD $)	1 Months Ended
	Jan. 31, 2010 Issue Date One [Member]	Jul. 31, 2010 Issue Date Two [Member]	Jan. 31, 2011 Issue Date Three [Member]	Jul. 31, 2011 Issue Date Four [Member]	Jan. 31, 2012 Issue Date Five [Member]	Jul. 31, 2012 Issue Date Six [Member]
Summary of plan activity
Shares Issued, Price	$ 12.85	$ 10.45	$ 11.02	$ 10.88	$ 11.91	$ 11.29
Shares Issued, Shares	11,717	12,403	13,243	11,371	10,523	19,031