Leases - Additional Information (Detail)		3 Months Ended
	Jan. 02, 2019 USD ($)	Mar. 31, 2020 USD ($) Lease	Jul. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jan. 01, 2019 USD ($)
Lessee Lease Description [Line Items]
Operating lease, options to renew term		1 year
Lessee, Operating Lease, Existence of Option to Extend [true false]		true
Operating lease, right-of-use asset		$ 135,000		$ 276,000
Operating lease, liability		$ 140,000
Lessee, operating lease incremental borrowing rate					12.78%
Operating lease, lease not yet commenced, description		the Company entered into two new real property leases which will commence in July 1, 2020.
Number of new real property leases | Lease		2
Scenario Forecast
Lessee Lease Description [Line Items]
Operating lease, right-of-use asset			$ 1,800,000
Operating lease, liability			$ 1,800,000
ASU 2016-02
Lessee Lease Description [Line Items]
Operating lease, right-of-use asset					$ 800,000
Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List					us-gaap:PrepaidExpenseAndOtherAssetsCurrent
Adjustment for deferred rent					$ 200,000
Operating Lease, Liability, Statement of Financial Position [Extensible List]					us-gaap:AccruedLiabilitiesCurrent
Operating lease, liability					$ 1,000,000
Cumulative-effect adjustment to retained earnings	$ 0
Minimum
Lessee Lease Description [Line Items]
Lease term		1 year
Maximum
Lessee Lease Description [Line Items]
Lease term		5 years
Lease initial term of contract		1 year