Note 2 - Summary of Significant Accounting Policies (Detail) (USD $)	9 Months Ended	12 Months Ended
	Dec. 31, 2013	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Number of Customers		3
Revenue, Net		$ 4,761,289	$ 5,068,613	$ 5,259,012
Warranty Period	3 years
Percentage of Research and Development to Sales		1.00%
Cash Equivalents, at Carrying Value		258,798		274,530
Depreciation		86,257	108,924	131,800
Advertising Expense		6,940	16,756	17,854
Automotive Industry [Member] | Accounts Receivable [Member]
Concentration Risk, Percentage		73.00%	77.00%
Customer 1 [Member]
Revenue, Net		905,000	883,000	542,000
Accounts Receivable, Net		327,000	309,000
Customer 2 [Member]
Revenue, Net		710,000	459,000	581,000
Accounts Receivable, Net		66,000	93,000
Customer 3 [Member]
Revenue, Net			418,000	455,000
Accounts Receivable, Net			$ 28,000
Minimum [Member]
Warranty Period		12 months
Maximum [Member]
Warranty Period		48 months