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Leases (Details) - USD ($)
 12 Months Ended
Dec. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
Lease, Cost [Abstract]      
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months $ 1,433,000   $ 1,291,000
Operating Lease, Payments $ 1,455,000    
Operating Lease, Weighted Average Discount Rate, Percent 4.94%    
Operating Lease, Weighted Average Remaining Lease Term 4 years    
Operating, Lease, Right-of-Use Asset, Current $ 0    
Operating Lease, Right-of-Use Asset, Noncurrent 4,484,000    
Operating Lease, Right-of-Use Asset 4,484,000 $ 4,490,000 0
Operating Lease, Liability, Current (1,304,000)    
Operating Leases, Rent Expense, Net 1,430,000    
Operating Lease, Liability, Noncurrent 3,119,000   0
Operating Lease, Liability 4,423,000 $ 4,428,000  
Lessee, Operating Lease, Liability, Payments, Due Year Two 1,174,000   1,099,000
Lessee, Operating Lease, Liability, Payments, Due Year Three 1,102,000   838,000
Lessee, Operating Lease, Liability, Payments, Due Year Four 1,000,000   766,000
Lessee, Operating Lease, Liability, Payments, Due Year Five 530,000   661,000
Lessee, Operating Lease, Liability, Payments, Due after Year Five     331,000
Lessee, Operating Lease, Liability, Payments, Due 5,239,000   $ 4,986,000
Lessee, Operating Lease, Imputed Interest (816,000)    
Lessee, Operating Lease, Discounted Lease Payments $ 4,423,000