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Stock Award Plans (Tables)
 12 Months Ended
Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of option activity
A summary of stock option activity and changes during the year are as follows.
Options
Shares
Weighted
Average
Exercise
Price
Weighted
Average
Remaining
Contractual
Term
Aggregate
Intrinsic
Value
(In thousands)
Outstanding at September 30, 2016
459,443

$
21.47

2
$2,392
Exercised
(311,168
)
22.83

 
 
Forfeited
(25,745
)
18.61

 
 
Outstanding at September 30, 2017
122,530

$
18.64

2
$
1,839

Exercisable at September 30, 2017
122,530

$
18.64

2
$
1,839
Schedule of miscellaneous information related to stock options
The table below presents other information regarding stock options.
Year ended September 30,
2017
2016
2015
 
(In thousands, except fair value of options granted)
Compensation cost for stock options
$
—

$
89

$
232

Weighted average grant date fair value per stock option
3.06

2.73

2.96

Total intrinsic value of options exercised
2,605

1,651

831

Grant date fair value of options exercised
1,328

1,422

368

Cash received from option exercises
7,238

9,283

2,070
Summary of nonvested activity
The following is a summary of activity related to unvested stock options.
Year ended September 30,
2017
 
2016
 
2015
Non-vested Stock Options
Options Outstanding
Weighted
Average
Grant Date
Fair Value
 
Options Outstanding
Weighted
Average
Grant Date
Fair Value
 
Options Outstanding
Weighted
Average
Grant Date
Fair Value
Outstanding at beginning of period
—

$
—

 
69,287

$
3.85

 
145,795

$
3.87

Vested
—

—

 
(62,227
)
3.91

 
(61,018
)
3.88

Forfeited
—

—

 
(7,060
)
3.89

 
(15,490
)
3.90

Outstanding at end of period
—

$
—

 
—

$
—

 
69,287

$
3.85
Restricted Stock  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of nonvested activity
The following table summarizes information about unvested restricted stock activity.
Year ended September 30,
2017
 
2016
 
2015
Non-vested Restricted Stock
Outstanding
Weighted
Average
Fair Value
 
Outstanding
Weighted
Average
Fair Value
 
Outstanding
Weighted
Average
Fair Value
Outstanding at beginning of period
490,363

$
16.00

 
521,302

$
15.03

 
515,845

$
14.10

Granted
238,450

18.89

 
229,450

$
17.20

 
301,750

14.26

Vested
(116,878
)
20.95

 
(165,965
)
15.96

 
(223,043
)
13.24

Forfeited
(145,254
)
8.56

 
(94,424
)
13.64

 
(73,250
)
10.72

Outstanding at end of period
466,681

$
18.56

 
490,363

$
16.00

 
521,302

$
15.03