Per Share Information (Tables)

6 Months Ended

Mar. 31, 2017

Per Share Information [Abstract]

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

	Three Months Ended March 31,
	2017		2016
Numerator:
Net income attributable to common shareholders of IES Holdings, Inc.	$	532	$	2,174
Net income attributable to restricted shareholders of IES Holdings, Inc.		4		20
Net income attributable to IES Holdings, Inc.	$	536	$	2,194
Denominator:
Weighted average common shares outstanding — basic		21,299,098		21,273,814
Effect of dilutive stock options and non-vested restricted stock		275,057		162,198
Weighted average common and common equivalent shares outstanding — diluted		21,574,155		21,436,012
Earnings per share attributable to IES Holdings, Inc.:
Basic	$	0.02	$	0.10
Diluted	$	0.02	$	0.10

	Six Months Ended March 31,
	2017		2016
Numerator:
Net income attributable to common shareholders of IES Holdings, Inc.	$	4,373	$	7,919
Net income attributable to restricted shareholders of IES Holdings, Inc.		35		74
Net income attributable to IES Holdings, Inc.	$	4,408	$	7,993
Denominator:
Weighted average common shares outstanding — basic		21,292,523		21,271,655
Effect of dilutive stock options and non-vested restricted stock		268,155		117,603
Weighted average common and common equivalent shares outstanding — diluted		21,560,678		21,389,258
Earnings per share attributable to IES Holdings, Inc.:
Basic	$	0.21	$	0.37
Diluted	$	0.20	$	0.37