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Commitments And Contingencies (Narrative) (Details) - USD ($)
9 Months Ended
Apr. 15, 2016
Mar. 22, 2016
Sep. 30, 2020
Sep. 30, 2019
Jun. 30, 2020
May 01, 2020
Oct. 31, 2015
Commitments And Contingencies [Line Items]              
Percent of royalty paid     4.00%        
Minimum royalty payment     $ 57,500        
Royalty expense     $ 124,000 $ 125,000      
Trumbull, Connecticut Facility [Member]              
Commitments And Contingencies [Line Items]              
Leasehold improvements             $ 596,000
Lease renewal term     5 years        
Lease expiration date     Jun. 30, 2026        
BBVA USA [Member] | CARES Act [Member] | Paycheck Protection Program Loan (PPP) [Member]              
Commitments And Contingencies [Line Items]              
Aggregate amount of loan           $ 1,005,767  
Fixed rate per annum           1.00%  
Maturity date     May 01, 2022        
DECD [Member]              
Commitments And Contingencies [Line Items]              
DECD maximum borrowing capacity   $ 4,000,000          
Fixed rate per annum   2.00%          
Maturity date     Apr. 15, 2026        
Amount eligible for forgiveness   $ 1,500,000          
Proceeds from development loan $ 2,000,000            
DECD [Member] | Amended Loan Agreement [Member]              
Commitments And Contingencies [Line Items]              
Job creation, consecutive period of hiring and retaining   2 years          
Debt, maturity term     10 years        
Debt penalty percentage     5.00%        
Proceeds from development loan 2,000,000            
DECD remaining borrowing capacity $ 2,000,000            
Line of Credit [Member] | DECD [Member] | Amended Loan Agreement [Member]              
Commitments And Contingencies [Line Items]              
DECD maximum borrowing capacity   $ 4,000,000          
DECD remaining borrowing capacity         $ 2,000,000    
Line of Credit [Member] | DECD [Member] | First Loan Available Under Loan Agreement [Member] | Amended Loan Agreement [Member]              
Commitments And Contingencies [Line Items]              
DECD remaining borrowing capacity         1,000,000    
Line of Credit [Member] | DECD [Member] | Final Loan Available Under Loan Agreement [Member] | Amended Loan Agreement [Member]              
Commitments And Contingencies [Line Items]              
DECD remaining borrowing capacity         $ 1,000,000