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Earnings Per Share
 3 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share
 
Basic earnings per share ("EPS") is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Diluted EPS is computed similarly to basic EPS except that the denominator is increased to include the number of additional common shares that would have been outstanding if potentially dilutive common shares had been issued. In the case of a net loss, diluted earnings per share is calculated in the same manner as basic EPS.
 
For the three months ended December 31, 2015, options for 1,938,000 shares are excluded from the diluted EPS calculations because they are anti-dilutive. For the three months ended December 31, 2014, options for 1,346,000 shares and 14,000 restricted stock awards were excluded from the diluted EPS calculations because they were anti-dilutive.

The following table outlines basic and diluted EPS:

 
Three Months Ended December 31,
 
2015
 
2014
 
(in thousands, except per share amounts)
Basic Loss Per Share Computation
 
 
 
Net loss attributable to Amtech Systems, Inc.
$
(4,015
)
 
$
(5,195
)
Weighted Average Shares Outstanding:
 
 
 
Common stock
13,152

 
9,854

Basic loss per share attributable to Amtech shareholders
$
(0.31
)
 
$
(0.53
)
Diluted Loss Per Share Computation
 
 
 
Net loss attributable to Amtech Systems, Inc.
$
(4,015
)
 
$
(5,195
)
Weighted Average Shares Outstanding:
 
 
 
Common stock
13,152

 
9,854

Common stock equivalents (1)
—

 
—

Diluted shares
13,152

 
9,854

Diluted loss per share attributable to Amtech shareholders
$
(0.31
)
 
$
(0.53
)

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