BASIS OF PRESENTATION (Details Textual)	9 Months Ended
	Jun. 30, 2012
Expendable Tools [Member]
Reserves For Inventory In Excess Of Demand Inventory Future Consumption Period	12 months
Spare Parts [Member]
Reserves For Inventory In Excess Of Demand Inventory Future Consumption Period	24 months
Equipment [Member]
Reserves For Inventory In Excess Of Demand Inventory Future Consumption Period	18 months
Accounting Standards Update 2011-11 [Member]
New Accounting Pronouncement or Change in Accounting Principle, Description	In December 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2011-11, Balance Sheet (Topic 210): Disclosure about Offsetting Assets and Liabilities ("ASU 2011-11"). ASU 2011-11 requires an entity to disclose information about offsetting and related arrangements (such as enforceable master netting arrangement or similar agreement). This information will enable users of an entity''s financial statements to evaluate the effect or potential effect of netting arrangements on an entity''s financial position, including the effect or potential effect of rights of setoff associated with certain financial instruments and derivative instruments in the scope of this Update. ASU 2011-11 is effective for annual reporting periods beginning on or after January 1, 2013 and will be applied retrospectively for all comparative periods presented.
Accounting Standards Update 2011-12 [Member]
New Accounting Pronouncement or Change in Accounting Principle, Description	In January 2012, the FASB issued ASU 2011-12 Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05 ("ASU 2011-12"). ASU 2011-12 superseded certain pending paragraphs in ASU 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income ("ASU 2011-05"), to effectively defer only those changes in ASU 2011-05 that relate to the presentation of reclassification adjustments out of accumulated other comprehensive income. ASU 2011-12 amendments will be temporary to allow the Board time to re-deliberate the presentation requirements for reclassifications out of accumulated other comprehensive income for annual and interim financial statements. ASU 2011-12 is effective for fiscal years beginning after December 15, 2011.