Cash Flow (Table)

12 Months Ended

Sep. 30, 2012

Schedule of Cash Flows - Supplemental and Noncash [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

	2012		2011		2010
Supplemental Disclosures
Cash paid for interest	$	788	$	505	$	340
Cash paid for income taxes		31,025		21,302		19,850
Noncash Investing and Financing Activities
Issuance of restricted common stock for asset acquisition		7,158		-		-
Capital lease asset additions and related obligations		165		455		-
Equipment acquisitions financed with accounts payable		192		124		23