Annual report pursuant to Section 13 and 15(d)

Equity and Stock-Based Compensation - Additional Information (Details)

v3.22.2.2
Equity and Stock-Based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended 84 Months Ended 120 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2000
Dec. 31, 2015
Dec. 31, 2014
Nov. 30, 2021
Apr. 30, 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Common stock, par value $ 0.01 $ 0.01            
Total cost of shares repurchased and retired $ 4,115   $ 2,000          
Stock-based compensation expense 543 $ 401 $ 326          
Compensation cost on non-vested stock options not yet recognized $ 700              
Compensation cost, expected weighted-average recognition period 1 year 2 months 8 days              
Shares available to grant 946,000              
2007 Plan | Stock Options                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares available to grant               500,000
Number of additional shares authorized         2,500,000      
2022 Plan                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares available to grant 946,000              
2022 Plan | Stock Options                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares available to grant             1,000,000  
Non-Employee Directors Stock Option Plan | Stock Options                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of additional shares authorized           400,000    
Share-based compensation, shares issued       100,000        
2019 Stock Repurchase Plan                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock repurchase program period 1 year              
Authorized stock repurchase amount $ 4,000              
2020 Stock Repurchase Plan                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock repurchase program period 1 year              
Authorized stock repurchase amount $ 4,000              
Shares repurchased and retired during the period 366,000              
Total cost of shares repurchased and retired $ 2,000              
Average price per share of shares repurchased $ 5.46              
2021 Stock Repurchase Plan                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock repurchase program period 1 year              
Authorized stock repurchase amount $ 4,000              
Shares repurchased and retired during the period 291,383              
Total cost of shares repurchased and retired $ 2,700              
Average price per share of shares repurchased $ 9.31              
2022 Stock Repurchase Plan                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock repurchase program period 1 year              
Authorized stock repurchase amount $ 5,000              
Shares repurchased and retired during the period 143,430              
Total cost of shares repurchased and retired $ 1,400              
Average price per share of shares repurchased $ 9.78              
Amount Available for Repurchases $ 3,600