Earnings Per Share (Tables)

9 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Basic and Diluted Earnings Per Share

The following table outlines basic and diluted EPS, in thousands, except per share amounts:

	Three Months Ended June 30,				Nine Months Ended June 30,
	2018		2017		2018		2017
Basic Income Per Share Computation
Net income attributable to Amtech Systems, Inc.	$	4,971	$	3,287	$	14,258	$	1,812
Weighted Average Shares Outstanding:
Common stock	14,925		13,242		14,867		13,203
Basic income per share attributable to Amtech shareholders	$	0.33	$	0.25	$	0.96	$	0.14
Diluted Income Per Share Computation
Net income attributable to Amtech Systems, Inc.	$	4,971	$	3,287	$	14,258	$	1,812
Weighted Average Shares Outstanding:
Common stock	14,925		13,242		14,867		13,203
Common stock equivalents (1)	166		156		314		85
Diluted shares	15,091		13,398		15,181		13,288
Diluted income per share attributable to Amtech shareholders	$	0.33	$	0.25	$	0.94	$	0.14

(1) The number of common stock equivalents is calculated using the treasury method and the average market price during the period.