Note 3 - Inventories (Detail) - Inventories (USD $)	Sep. 30, 2012	Sep. 30, 2011
New	$ 17,283,788	$ 19,970,510
Refurbished	6,382,597	7,363,237
Allowance for excess and obsolete inventory	(1,000,000)	(1,556,000)
	$ 22,666,385	$ 25,777,747

The amount of the valuation account as of the balance sheet date which reduces the carrying amount of inventory to net realizable value; takes into consideration such factors as market value, excessive quantities based on expected sales, technological obsolescence, and shrinkage. May also provide for estimated product returns or price concessions pertaining to product cost.

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

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+ Details