Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands		9 Months Ended
Jan. 01, 2019	Sep. 30, 2019
Leases [Abstract]
Operating cash flows from operating leases		$ 549
ROU assets obtained in exchange for new operating lease liabilities	$ 3,395	$ 3,610
Weighted-average remaining lease term in years for operating leases		6 years 5 months 5 days
Weighted-average discount rate for operating leases		5.15%

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
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-Section 45
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+ Details

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
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-Publisher FASB
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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

+ References

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