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Leases: Lessee, Operating Lease, Liability, Maturity (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Details  
Lessee, Operating Lease, Liability, to be Paid, Year One $ 38
Lessee, Operating Lease, Liability, to be Paid, Year Two 40
Lessee, Operating Lease, Liability, to be Paid, Year Three 27
Lessee, Operating Lease, Liability, to be Paid, Year Four 29
Lessee, Operating Lease, Liability, to be Paid, Year Five 30
Lessee, Operating Lease, Liability, to be Paid, after Year Five $ 248