Note 16 - Segment and Related Information (Tables)

3 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Three Months Ended December 31,						Fiscal Years Ended September 30,
	2017			2016			2017			2016		2015
				(unaudited)
Net Sales
Commercial Air Handling	$	9,004,560		$	-		$	11,190,844		$	-	$	-
Test and Measurement		1,161,773			827,066			6,610,684			4,884,778		5,852,924
Industrial Hose		1,587,886			1,529,860			6,015,207			1,761,002		-
	$	11,754,219		$	2,356,926		$	23,816,735		$	6,645,780	$	5,852,924
Income (Loss) Before Provision for Income Taxes
Commercial Air Handling	$	905,736		$	-		$	1,424,878		$	-	$	-
Test and Measurement		96,947			(45,409	)		1,859,936			143,021		940,016
Industrial Hose		205,910			389,637			595,939			16,075		-
General Corporate Expenses		(30,602	)		(649,934	)		(1,691,993	)		1,174,152		(1,062,393	)
	$	1,177,991		$	(305,706	)	$	2,188,760		$	1,333,248	$	(122,377	)

Revenue from External Customers by Geographic Areas [Table Text Block]

	Three Months Ended December 31,		Fiscal Years Ended September 30,
	2017		2017		2016		2015
Revenue:
United States of America	$	10,279,947	$	22,735,948	$	6,492,423	$	5,678,888
Australia		997		4,112		60,412		20,043
Canada		86,386		419,625		59,653		75,612
England		1,324,042		-		25,789		21,822
Mexico		4,649		315,869		6,976		26,902
Poland		52,492		316,666		-		-
Other		5,706		24,515		527		29,657
	$	11,754,219	$	23,816,735	$	6,645,780	$	5,852,924