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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Sep. 30, 2017
Accounting Policies [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):
 
Fiscal years ended September 30,
 
2017
 
2016
 
2015
Numerator:
 
 
 
 
 
Income from continuing operations
$
9,366

 
$
13,478

 
$
9,433

Income (loss) from discontinued operations, after income taxes
$
—

 
$
3,230

 
$
(2,845
)
Net income
$
9,366

 
$
16,708

 
$
6,588

Denominator:
 
 
 
 
 
Denominator for basic net income per common share — weighted average shares outstanding
26,432

 
25,760

 
24,645

Effect of dilutive securities:
 
 
 
 
 
Stock options and restricted stock units
667

 
551

 
582

Denominator for diluted net income per common share — adjusted weighted average shares
27,099

 
26,311

 
25,227

 
 
 
 
 
 
Basic net income (loss) per common share:
 
 
 
 
 
Continuing operations
$
0.35

 
$
0.52

 
$
0.38

Discontinued operations
$
—

 
$
0.13

 
$
(0.12
)
Net income (1)
$
0.35

 
$
0.65

 
$
0.27

Diluted net income (loss) per common share:
 
 
 
 
 
Continuing operations
$
0.35

 
$
0.51

 
$
0.37

Discontinued operations
$
—

 
$
0.12

 
$
(0.11
)
Net income (1)
$
0.35

 
$
0.64

 
$
0.26


(1) Earnings per share presented are calculated by line item and may not add due to the use of rounded amounts.