Per Share Information (Tables)

9 Months Ended

Jun. 30, 2018

Per Share Information [Abstract]

Schedule Of Earnings Per Share Basic And Diluted [Table Text Block]

	Three Months Ended June 30,
	2018		2017
Numerator:
Net income attributable to common shareholders of IES Holdings, Inc.	$	8,513	$	5,824
Net income attributable to restricted shareholders of IES Holdings, Inc.		3		44
Net income attributable to IES Holdings, Inc.	$	8,516	$	5,868
Denominator:
Weighted average common shares outstanding — basic		21,200,635		21,300,716
Effect of dilutive stock options and non-vested restricted stock		131,248		255,402
Weighted average common and common equivalent shares outstanding — diluted		21,331,883		21,556,118
Earnings per share attributable to IES Holdings, Inc.:
Basic	$	0.40	$	0.27
Diluted	$	0.40	$	0.27

	Nine Months Ended June 30,
	2018		2017
Numerator:
Net income (loss) attributable to common shareholders of IES Holdings, Inc.	$	(18,788)	$	10,195
Decrease in noncontrolling interest		(44)		-
Net income attributable to restricted shareholders of IES Holdings, Inc.		-		81
Net income (loss) attributable to IES Holdings, Inc.	$	(18,832)	$	10,276
Denominator:
Weighted average common shares outstanding — basic		21,193,306		21,295,254
Effect of dilutive stock options and non-vested restricted stock		-		255,550
Weighted average common and common equivalent shares outstanding — diluted		21,193,306		21,550,804
Earnings (loss) per share attributable to IES Holdings, Inc.:
Basic	$	(0.89)	$	0.48
Diluted	$	(0.89)	$	0.48