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Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2020

Balance Sheet Components

Summary of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following (in thousands):

​	​	​	​	​	​	​
​	​	December 31,
​		2020			2019
Prepaid clinical and research related expenses	​	$	3,517	​	$	2,567
Prepaid insurance	​	​	1,440	​	​	1,161
Other prepaid expenses	​		1,009	​		1,057
Other receivable	​	​	311	​	​	744
Prepaid expenses and other current assets	​	$	6,277	​	$	5,529

Summary of Property and Equipment Net

Property and equipment, net consisted of the following (in thousands):

​	​	​	​	​	​	​
​	​	December 31,
​		2020			2019
Laboratory equipment	​	$	3,539	​	$	2,947
Furniture and computer equipment	​		648	​		512
Leasehold improvements	​		748	​		863
Total property and equipment	​		4,935	​		4,322
Less: accumulated depreciation and amortization	​		(3,473)	​		(2,641)
Property and equipment, net	​	$	1,462	​	$	1,681

Schedule of Accrued Expenses and Other Payables

Accrued expenses and other payables consisted of the following (in thousands):

​	​	​	​	​	​	​
​	​	December 31,
​		2020		​	2019
Accrued clinical and research related expenses	​	$	11,335	​	$	7,232
Accrued employee related expenses	​		6,413	​		4,637
Accrued professional service fees	​	​	668	​	​	301
Accrued interest payable	​	​	—	​	​	68
Other	​		82	​		122
Total accrued expenses and other payables	​	$	18,498	​	$	12,360

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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses.

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Tabular disclosure of the carrying amounts of other current assets.

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