Note 4 - Inventories (Details) - Inventories (USD $)	Jun. 30, 2014	Sep. 30, 2013
Inventories [Abstract]
New	$ 18,695,780	$ 15,679,789
Refurbished	7,232,401	3,931,917
Allowance for excess and obsolete inventory	(2,200,000)	(1,600,000)
	$ 23,728,181	$ 18,011,706