Annual report pursuant to Section 13 and 15(d)

Share-based Compensation (Narrative) (Details)

v3.19.3.a.u2
Share-based Compensation (Narrative) (Details) - USD ($)
12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Jul. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Tax benefit of stock-based compensation expense $ 431,000 $ 426,000  
Proceeds from stock option exercises 333,000 66,000  
Options, exercises in period, intrinsic value 274,000 44,000  
Expense recognized $ 1,906,098 1,638,505  
Common Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share price $ 2.16    
Stock Option [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Award expiration period 10 years    
Unrecognized compensation expense, stock options $ 3,000,000    
Unrecognized compensation expense, period for recognition 3 years    
Expense recognized $ 53,000 362,000  
Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Fair value of restricted stock vested   $ 272,000  
Non-option equity instruments outstanding 0 0  
Shares of restricted stock vested 0    
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Non-option equity instruments outstanding 0    
Shares vested, intrinsic value $ 230,000    
Restricted Stock Units (RSUs) [Member] | Employee [Member] | The APP Merger [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares issued   50,000  
Restricted Stock Units (RSUs) [Member] | Outside Directors [Member] | The APP Merger [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares issued   140,000  
Stock Appreciation Rights (SARs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award expiration period 10 years    
Number of shares issued 77,559    
Non-option equity instruments, exercised 140,000    
Exercise price per share   $ 0.95  
Non-option equity instruments outstanding 50,000    
Stock Appreciation Rights (SARs) [Member] | The APP Merger [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vest date Oct. 31, 2018    
Stock Appreciation Rights (SARs) [Member] | Employee [Member] | The APP Merger [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares issued   50,000  
Stock Appreciation Rights (SARs) [Member] | Outside Directors [Member] | The APP Merger [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares issued   140,000  
Minimum [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 1 year    
Maximum [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
2008 Stock Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized 0    
2017 Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized     4,700,000
Number of shares available 49,514    
2018 Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized 6,000,000    
Number of shares available 2,967,614