Note 12 - Segment and Related Information (Tables)

12 Months Ended

Sep. 30, 2012

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

Years Ended September 30,	2012			2011			2010
Net Sales
Indicators and Gauges	$	1,612,943		$	1,253,975		$	1,357,114
Automotive Diagnostic Tools and Equipment		3,148,346			3,814,638			3,901,898
	$	4,761,289		$	5,068,613		$	5,259,012
Income (Loss) Before Provision for Income Taxes
Indicators and Gauges	$	271,343		$	94,178		$	34,647
Automotive Diagnostic Tools and Equipment		(78,433	)		229,355			188,037
General Corporate Expenses		(976,876	)		(996,068	)		(1,172,180	)
	$	(783,966	)	$	(672,535	)	$	(949,496	)

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

Years Ended September 30,	2012		2011
Identifiable Assets
Indicators and Gauges	$	850,186	$	701,543
Automotive Diagnostic Tools and Equipment		1,586,634		1,980,789
Corporate		769,151		758,268
	$	3,205,971	$	3,440,600

Schedule Segments by Geographic Location [Table Text Block]

Years Ended September 30,	2012		2011		2010
Revenue:
United States of America	$	4,598,029	$	4,854,871	$	5,168,432
Australia		14,018		26,945		44,377
Canada		72,535		119,667		35,228
England		-		28,924		-
Mexico		36,960		23,520		1,681
Taiwan		34,935		-		-
Other foreign countries		4,812		14,686		9,294
	$	4,761,289	$	5,068,613	$	5,259,012