WARRANTS - Weighted average summary of quantitative information (Detail)	Dec. 31, 2018 $ / shares
Weighted Average Inputs Before Modification [Member] | Measurement Input, Exercise Price [Member]
Warrants and Rights Outstanding, Measurement Input	9.93
Weighted Average Inputs Before Modification [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Term	2 years 4 months 13 days
Weighted Average Inputs Before Modification [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input	79
Weighted Average Inputs Before Modification [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input	1.5
Weighted Average Inputs Before Modification [Member] | Measurement Input, Expected Dividend Rate [Member]
Warrants and Rights Outstanding, Measurement Input	0
Weighted Average Inputs After Modification [Member] | Measurement Input, Exercise Price [Member]
Warrants and Rights Outstanding, Measurement Input	2.50
Weighted Average Inputs After Modification [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Term	2 years 4 months 13 days
Weighted Average Inputs After Modification [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input	79
Weighted Average Inputs After Modification [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input	1.5
Weighted Average Inputs After Modification [Member] | Measurement Input, Expected Dividend Rate [Member]
Warrants and Rights Outstanding, Measurement Input	0