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Commitments and Contingencies - Schedule of Other Information Related to Leases (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liability:
Operating cash flows from operating lease	$ 180
Operating lease asset obtained in exchange for lease liability:
Operating lease	$ 489
Remaining lease term
Operating lease	1 year 9 months
Discount rate
Operating lease	3.25%

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- Definition

Cash paid for amounts included in measurement of lease liabilities.

+ References

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Discount rate.

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Operating lease asset obtained in exchange for lease liability.

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Remaining lease term.

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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
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Weighted average discount rate for operating lease calculated at point in time.

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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.

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

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