Depreciation Rates Used In Computing Depreciation Expense (Details)	3 Months Ended
	Dec. 31, 2012
Software
Property, Plant and Equipment [Line Items]
Depreciation Rate	100.00%
Computer equipment
Property, Plant and Equipment [Line Items]
Depreciation Rate	55.00%
Portable work camp
Property, Plant and Equipment [Line Items]
Depreciation Rate	30.00%
Vehicles
Property, Plant and Equipment [Line Items]
Depreciation Rate	30.00%
Road mats
Property, Plant and Equipment [Line Items]
Depreciation Rate	30.00%
Wellhead
Property, Plant and Equipment [Line Items]
Depreciation Rate	25.00%
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Depreciation Rate	20.00%
Oilfield Equipment
Property, Plant and Equipment [Line Items]
Depreciation Rate	20.00%
Tanks
Property, Plant and Equipment [Line Items]
Depreciation Rate	10.00%