INCOME TAXES - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Tax [Line Items]
Tax credit carryforwards expiration period	2029
Deferred Tax Assets, Tax Credit Carryforwards, Research	$ 733,000	$ 406,000
Tax credit carryforwards expiration year end	2037
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	$ 73,800,000	41,900,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	$ 47,400,000	$ 21,900,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%
Operating Loss Carryforwards Limitation Percentage	80.00%
Decreased Deferred Tax Assets	$ 4,700,000
Foreign Tax Authority [Member]
Income Tax [Line Items]
Operating Loss Carryforwards		$ 31,900,000
State and Local Jurisdiction [Member]
Income Tax [Line Items]
Operating Loss Carryforwards		$ 25,500,000