Leases - Lessee Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) option	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Leases [Abstract]
Number of extension options (option) | option	1
Lessee, operating lease, renewal term (years)	10 years
Right-of-use asset	$ 3,974
Lease liability	$ 4,236
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilities
Weighted average discount rate (percentage)	4.53%
Operating leases, rent expense	$ 746	$ 746	$ 746
Operating lease, payments	$ 800	$ 800	$ 800