Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

The weighted-average remaining lease terms and weighted-average discount rate as of December 31, 2021 were as follows:

Weighted-average remaining lease term (years)
Operating leases	13
Weighted-average discount rate (%)
Operating leases	4%

Maturities of operating lease liabilities as of December 31, 2021 are as follows:

	Operating leases
2022	$	—
2023	1
2024	1
2025	1
2026	1
Thereafter	1
Total lease payments	5
Less: present value discount	1
Present value of lease liabilities	$	4