Registration of securities issued in business combination transactions

Maturities of lease liabilities as of December 31, 2020 were as follows (Details)

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Maturities of lease liabilities as of December 31, 2020 were as follows (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Leases    
2021 $ 225,000  
2022 152,000  
2023 47,000  
2024 4,000  
Total lease payments 428,000  
Less imputed interest (17,000)  
Total operating lease liabilities $ 411,000 $ 360,000