Supplemental cash flow information related to leases is as follows for the nine-month period ended September 30: (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Leases
Operating cash outflow from operating leases	$ 554	$ 518
Weighted-average remaining lease term-finance leases (in years)	10 months 24 days	1 year 10 months 24 days
Weighted-average remaining lease term-operating leases (in years)	3 years 2 months 12 days	3 years 4 months 24 days
Weighted-average discount rate-finance leases	9.30%	9.30%
Weighted-average discount rate-operating leases	14.10%	14.30%

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Weighted average discount rate for finance lease calculated at point in time.

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Remaining lease term of finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Weighted average discount rate for operating lease calculated at point in time.

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