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Stock Based Incentive Compensation (Tables) | 12 Months Ended
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Sep. 30, 2023
Employee Stock Purchase Plan |
Schedule of stock-based compensation expense | The following table summarizes stock-based compensation expense in the Company’s consolidated statements of operations:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2023 |  | 2022
​ | ​ | (Amounts in thousands)
Cost of sales | ​ | $ | 2 | ​ | $ | —
Engineering and development | ​ |  | 107 | ​ |  | 56
Selling, general and administrative | ​ |  | 1,018 | ​ |  | 923
Total | ​ | $ | 1,127 | ​ | $ | 979
Share-based Compensation, Stock Options, Activity | The following tables provide summary data of stock option award activity:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | Aggregate
​ | ​ | ​ | ​ | average | ​ | Remaining | ​ | Intrinsic
​ | ​ | Number | ​ | exercise | ​ | Contractual | ​ | Value
​ |  | of Options |  | price |  | Term |  | (in thousands)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Outstanding at September 30, 2021 |  | 500 | ​ | $ | 3.43 |  | — |  | ​ | —
Granted |  | — | ​ |  | — |  | — |  | ​ | —
Expired |  | (500) | ​ | ​ | 3.43 |  | — |  | ​ | —
Forfeited |  | — | ​ |  | — |  | — |  | ​ | —
Exercised |  | — | ​ |  | — |  | — |  | ​ | —
Outstanding at September 30, 2022 |  | — | ​ | $ | — |  | — |  | ​ | —
Granted |  | — | ​ |  | — |  | — |  | ​ | —
Expired |  | — | ​ | ​ | — |  | — |  | ​ | —
Forfeited |  | — | ​ |  | — |  | — |  | ​ | —
Exercised |  | — | ​ |  | — |  | — | ​ | ​ | —
Outstanding at September 30, 2023 |  | — | ​ | $ | — |  | — | ​ | ​ | —
Schedule of Nonvested Share Activity | The following table provides summary data of nonvested stock award activity: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted | ​ | Weighted | ​ | ​ | ​
​ | ​ | ​ | ​ | Average | ​ | Average | ​ | Aggregate
​ | ​ | ​ | ​ | Grant Date | ​ | Remaining | ​ | Intrinsic
​ | ​ | ​ | ​ | Fair | ​ | Contractual | ​ | Value
​ |  | Shares |  | Value |  | Term |  | (in thousands)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Nonvested shares outstanding at September 30, 2021 |  | 197,063 | ​ | $ | 10.28 |  | 2.15 Years | ​ | $ | 1,760
Activity in fiscal year 2022: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Granted |  | 152,246 | ​ | $ | 8.53 |  | — | ​ |  | —
Vested |  | (87,957) | ​ | $ | 10.57 |  | — | ​ |  | —
Forfeited |  | (1,564) | ​ | $ | 13.24 |  | — | ​ |  | —
Nonvested shares outstanding at September 30, 2022 |  | 259,788 | ​ | $ | 9.14 |  | 2.38 Years | ​ | $ | 1,868
Activity in fiscal year 2023: |  |  | ​ |  |  |  |  | ​ |  |
Granted |  | 143,172 | ​ | $ | 10.09 |  | — | ​ |  | —
Vested |  | (107,885) | ​ | $ | 9.36 |  | — | ​ |  | —
Nonvested shares outstanding at September 30, 2023 |  | 295,075 | ​ | $ | 9.53 |  | 2.33 Years | ​ | $ | 5,164

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