Prepaid Expenses and Other Current Assets - Summary of Prepaids and Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Prepaid Expense And Other Assets Current [Abstract]
Prepaid inventory	$ 3,670	$ 2,195
Restricted cash	312	307
Prepaid insurance	1,664	1,967
Other	1,025	926
Prepaid and other current assets	$ 6,671	$ 5,395

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.

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Name:	us-gaap_PrepaidInsurance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant