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Commitments And Contingencies (Narrative) (Details)
6 Months Ended
Apr. 03, 2020
USD ($)
employee
Apr. 15, 2016
USD ($)
Mar. 22, 2016
USD ($)
employee
Jun. 30, 2020
USD ($)
item
Jun. 30, 2019
USD ($)
May 01, 2020
USD ($)
Mar. 07, 2018
USD ($)
Oct. 31, 2015
USD ($)
Commitments And Contingencies [Line Items]                
Percent of royalty paid       4.00%        
Minimum royalty payment       $ 57,500        
Royalty expense       $ 76,000 $ 75,000      
Austin, Texas facility                
Commitments And Contingencies [Line Items]                
Lease renewal term       2 years        
Trumbull, Connecticut Facility [Member]                
Commitments And Contingencies [Line Items]                
Leasehold improvements               $ 596,000
Lease renewal term       5 years        
Maximum [Member] | Trumbull, Connecticut Facility [Member]                
Commitments And Contingencies [Line Items]                
Lessee operating lease frequency of renewal terms | item       2        
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          
DECD initial disbursement   $ 2,000,000            
DECD remaining borrowing capacity   $ 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%        
Line of Credit [Member] | DECD [Member]                
Commitments And Contingencies [Line Items]                
Number of full-time employees required to hire | employee     40          
Capital investment required to meet loan criteria     $ 18,000,000          
Line of Credit [Member] | DECD [Member] | Amended Loan Agreement [Member]                
Commitments And Contingencies [Line Items]                
Number of full-time employees required to hire | employee 25              
Capital investment required to meet loan criteria $ 18,800,000              
DECD remaining borrowing capacity 2,000,000           $ 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