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Earnings Per Share (Tables)
3 Months Ended
Dec. 31, 2012
Earnings Per Share [Abstract]  
Schedule of Calculation of Numerator and Denominator in Earnings Per Share
The following table is a reconciliation of the numerators and denominators in the net income per common share calculations (in thousands, except per common share data):
 
Three months ended
December 31,
 
2012
 
2011
Numerator:
 
 
 
Net income
$
1,230

 
$
724

Denominator:
 
 
 
Denominator for basic net income per common share — weighted average shares outstanding
26,188

 
25,639

Effect of dilutive securities:
 
 
 
Employee stock options and employee stock purchase plan
246

 
504

Denominator for diluted net income per common share — adjusted weighted average shares
26,434

 
26,143

Net income per common share, basic
$
0.05

 
$
0.03

Net income per common share, diluted
$
0.05

 
$
0.03