Components of Lease Expense (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating lease expense	$ 116	$ 116	$ 348	$ 348
Finance lease expense:
Amortization of leased assets	7	6	24	18
Interest on lease liabilities			2	2
Total finance lease expense	7	6	26	20
Total lease expense	$ 123	$ 122	$ 374	$ 368