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Stock Award Plans (Tables)
 12 Months Ended
Sep. 30, 2020
Share-based Payment Arrangement [Abstract]  
Summary of option activity A summary of stock option activity and changes during the year are as follows.
OptionsNumber of OptionsWeighted
Average
Exercise
Price		Weighted
Average
Remaining
Contractual
Term (Years)		Aggregate
Intrinsic
Value
(In thousands)
Outstanding at September 30, 201851,060 $15.25 2$855 
Granted356,343 28.16 
Exercised(22,975)12.99 
Forfeited(64,141)27.96 
Outstanding at September 30, 2019320,287 27.21 83,136 
Granted1,043,349 29.53 
Exercised(8,085)17.88 
Forfeited(125,827)30.25 
Outstanding at September 30, 20201,229,724 $28.93 9$— 
Exercisable at September 30, 202019,535 $16.88 0.5$78 
Schedule of miscellaneous information related to stock options
The table below presents other information regarding stock options.

Year ended September 30,202020192018
(In thousands, except grant date fair value per stock option)
Compensation cost for stock options$1,344 $521 $— 
Weighted average grant date fair value per stock option4.37 5.21 3.15 
Total intrinsic value of options exercised102 414 908 
Grant date fair value of options exercised33 51 285 
Cash received from option exercises144 298 1,338 
Summary of nonvested activity
The following is a summary of activity related to unvested stock options.

Year ended September 30,202020192018
Unvested Stock OptionsOptions OutstandingWeighted
Average
Grant Date
Fair Value		Options OutstandingWeighted
Average
Grant Date
Fair Value		Options OutstandingWeighted
Average
Grant Date
Fair Value
Outstanding at beginning of period293,167 $5.33 — $— — $— 
Granted1,043,349 4.17 356,343 5.33 — — 
Vested— — — — — — 
Forfeited(125,827)4.83 (63,176)5.33 — — 
Outstanding at end of period1,210,689 $4.38 293,167 $5.33 — $— 
The following table summarizes information about unvested restricted stock activity.
Year ended September 30,202020192018
Non-vested Restricted StockOutstandingWeighted
Average
Fair Value		OutstandingWeighted
Average
Fair Value		OutstandingWeighted
Average
Fair Value
Outstanding at beginning of period435,838 $23.73 460,999 $22.52 466,681 $18.56 
Granted197,706 26.24 249,272 21.41 205,100 26.11 
Vested(205,715)25.56 (159,103)26.09 (198,620)16.65 
Forfeited(18,360)17.20 (115,330)10.61 (12,162)27.00 
Outstanding at end of period409,469 $24.32 435,838 $23.73 460,999 $22.52