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Stock-based Compensation - Narrative (Details) - USD ($)
6 Months Ended 9 Months Ended 12 Months Ended
Mar. 08, 2022
Jun. 30, 2020
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2018
Dec. 31, 2016
Stock Option            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Options issued to purchase shares of common stock 630,000 280,000        
Vesting period 5 years 5 years        
Strike price $ 4.53 $ 3.81        
Expiration date Mar. 08, 2032 Jun. 30, 2030        
Estimated value of options issued to purchase shares of common stock $ 612,000 $ 290,000        
Share-based compensation expense     $ 111,000 $ 39,000    
Share-based compensation expense not yet recognized     $ 685,000      
Share-based compensation nonvested shares     783,000      
2015 Omnibus Incentive Plan | Restricted Stock Units (RSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares granted in period (in shares)         70,000 111,281
Shares granted in period         $ 404,000 $ 909,000
Share-based compensation expense     $ 43,000 $ 145,000    
Share-based compensation expense not yet recognized     $ 30,000      
Share-based compensation nonvested shares     10,000