Quarterly report pursuant to Section 13 or 15(d)

Right-of-Use Assets and Operating Lease Liabilities - Schedule of Operating Leases (Details)

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Right-of-Use Assets and Operating Lease Liabilities - Schedule of Operating Leases (Details) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
Right-of-use assets $ 2,590,000 $ 2,730,000
Short-term operating lease liabilities 591,000 596,000
Long-term operating lease liabilities 2,786,000 2,943,000
Total operating lease liabilities $ 3,377,000 $ 3,539,000