Per Share Information (Tables)

9 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended June 30,
	2020		2019
Numerator:
Net income attributable to common stockholders of IES Holdings, Inc.	$	12,066	$	10,826
Net income attributable to restricted stockholders of IES Holdings, Inc.		194		146
Net income attributable to IES Holdings, Inc.	$	12,260	$	10,972
Denominator:
Weighted average common shares outstanding — basic		20,728,149		21,043,425
Effect of dilutive stock options and non-vested restricted stock		268,583		257,810
Weighted average common and common equivalent shares outstanding — diluted		20,996,732		21,301,235
Earnings per share attributable to IES Holdings, Inc.:
Basic	$	0.58	$	0.52
Diluted	$	0.58	$	0.52
	Nine Months Ended June 30,
	2020		2019
Numerator:
Net income attributable to common stockholders of IES Holdings, Inc.	$	26,577	$	23,210
Net income attributable to restricted stockholders of IES Holdings, Inc.		416		135
Net income attributable to IES Holdings, Inc.	$	26,993	$	23,345
Denominator:
Weighted average common shares outstanding — basic		20,819,857		21,139,697
Effect of dilutive stock options and non-vested restricted stock		264,410		242,481
Weighted average common and common equivalent shares outstanding — diluted		21,084,267		21,382,178
Earnings per share attributable to IES Holdings, Inc.:
Basic	$	1.28	$	1.10
Diluted	$	1.26	$	1.09