Annual report pursuant to Section 13 and 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 ($)
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Right-of-use assets $ 2,730,000 $ 3,275,000
Short-term operating lease liabilities 596,000 391,000
Long-term operating lease liabilities 2,943,000 3,591,000
Total operating lease liabilities $ 3,539,000 $ 3,982,000