Balance Sheet Components - Prepaid and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Prepaid and Other Current Assets
Interest receivable	$ 329	$ 337
Prepaid research and development manufacturing expenses	240	75
Prepaid facility expenses	157	149
Prepaid insurance	150	166
Other	486	265
Total of prepaid and other current assets	$ 1,362	$ 992

Amount of asset related to consideration paid in advance for facility expenses.

No definition available.

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- Definition

Amount of asset related to consideration paid in advance for research and development expense that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

+ References

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- Definition

Amount of current assets classified as other.

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- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

+ References

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-Name Accounting Standards Codification
-Topic 210
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- References

No definition available.

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- Definition

Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

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