Lease (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2019
Finance lease cost components:
Amortization of finance lease assets	$ 18	$ 52
Interest on finance lease liabilities	14	44
Total finance lease costs	32	96
Operating lease cost components:
Operating lease cost	129	375
Variable lease cost	27	81
Short-term lease cost	16	68
Total operating lease costs	172	524
Total lease cost	$ 204	$ 620

No definition available.

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- Definition

Amount of finance lease costs recognized by lessee for lease contract.

+ References

No definition available.

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- References

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- Definition

Amount of interest expense on finance lease liability.

+ References

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

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- Definition

Amount of lease cost recognized by lessee for lease contract.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

+ References

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