Note 6 - Property and Equipment - Depreciation and Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Depreciation and amortization expense	$ 17,212	$ 13,496	$ 9,949
Cost of Sales [Member]
Depreciation and amortization expense	770	709	436
General and Administrative Expense [Member]
Depreciation and amortization expense	581	422	803
Stores [Member]
Depreciation and amortization expense	$ 15,861	$ 12,365	$ 8,710