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Long-Term Debt (Details)
1 Months Ended 3 Months Ended 9 Months Ended
Jul. 22, 2020
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Debt Instrument [Line Items]          
Proceeds from long-term debt       $ 4,904,000
Interest expense   $ 104,000 $ 24,000 220,000 $ 66,000
Loan and Security Agreement [Member] | East West Bank [Member]          
Debt Instrument [Line Items]          
Maximum borrowing capacity under term loan $ 10,000,000        
Loan term 2 years        
Repayment term 4 years        
Term loan interest rate description Term loans made pursuant to the agreement shall bear interest, at the Company’s option, (i) at the prime rate, as reported by the Wall Street Journal, or (ii) 3.0% above the LIBOR rate, provided that the minimum interest rate on any term loan will not be less than 3.25%.        
Origination fee 0.25%        
Debt coverage ratio 1.35        
Amount of tangible net worth minimum $ 25,000,000        
Capital ratio 10.00%        
Covenants description Certain other non-financial covenants include that the Company must promptly notify East West Bank of the creation or acquisition of any subsidiary that at any time owns assets with a value of $100,000 or greater.        
Term Loan [Member]          
Debt Instrument [Line Items]          
Proceeds from long-term debt   4,900,000      
Interest expense   $ 15,000   $ 15,000