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Leases: Lessee, Operating Lease, Liability, Maturity (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Details  
Lessee, Operating Lease, Liability, to be Paid, Year One $ 41
Lessee, Operating Lease, Liability, to be Paid, Year Two 27
Lessee, Operating Lease, Liability, to be Paid, Year Three 29
Lessee, Operating Lease, Liability, to be Paid, Year Four 30
Lessee, Operating Lease, Liability, to be Paid, Year Five 32
Lessee, Operating Lease, Liability, to be Paid, after Year Five $ 218