STOCK OPTION PLANS - Stock Option Activity (Detail) - USD ($)		12 Months Ended
	May 14, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Number of Shares Outstanding, Ending Balance		2,500,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 2.50
Exercise of Stock Options
Number of Shares Outstanding, Begining Balance		4,120,468	489,255
Options, grants in period, gross		1,172,500	3,704,855
Number of Shares, Exercised		(11,980)	(10,416)
Number of Shares, Canceled		(297,974)	(63,226)
Number of Shares Outstanding, Ending Balance		4,983,314	4,120,468	489,255
Number of Shares, Options vested and exercisable		1,281,957
Weighted Average Exercise Price per Share Outstanding, Begining Balance		$ 8.59	$ 7.08
Weighted Average Exercise Price per Share, Granted		4.70	8.89
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price		4.82	1.74
Weighted Average Exercise Price per Share, Forfeited/expired		8.15	6.00
Weighted Average Exercise Price per Share Outstanding, Ending Balance		7.79	$ 8.59	$ 7.08
Weighted Average Exercise Price per Share Exercisable		$ 8.34
Total Intrinsic Value Outstanding		$ 18,000	$ 339,000	$ 42,000
Total Intrinsic Value, Options vested and exercisable		$ 18,000
Weighted Average Remaining Contractual Life, Outstanding		8 years 10 months 24 days	9 years 1 month 6 days	8 years 1 month 6 days
Weighted Average Remaining Contractual Life, Options granted		9 years 6 months	9 years 9 months 18 days
Weighted Average Remaining Contractual Life, Exercisable		8 years 7 months 6 days