Subsequent Event

3 Months Ended

Oct. 31, 2012

Subsequent Event [Abstract]

Subsequent Event

16. Subsequent Event

The Company's majority owned subsidiary Walsh Environmental Scientists and Engineers, LLC (Walsh), at its most recent board meeting approved purchasing an additional 7% of its majority owned subsidiary Gustavson Associates, LLC (Gustavson) from a minority shareholder.  The share purchase with take place prior to December 31, 2012, and with this purchase Walsh will increase its ownership percentage of Gustavson to 78%.