STOCK INCENTIVE PLAN, OPTIONS AND WARRANTS (Summary of Restricted Stock Activity and Performance Stock Units) (Detail) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	12 Months Ended
	Jul. 25, 2017	Feb. 28, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Unvested restricted stock
Summary Of Restricted Stock Activity [Line Items]
Outstanding beginning, Other than options			292,989	195,536	258,787
Restricted stock awards, granted in period			464,576	235,296	111,112
Vested, Other than options			(235,296)	(137,843)	(174,363)
Outstanding ending, Other than options			522,269	292,989	195,536	258,787
Outstanding beginning, Weighted Average Exercise Price, Other than options			$ 3.72	$ 7.23	$ 8.45
Granted, Weighted Average Exercise Price, Other than options			0.86	1.70	3.60
Vested, Weighted Average Grant Date Fair Value			(1.70)	(5.25)	(6.73)
Outstanding ending , Weighted Average Exercise Price, Other than options			$ 0.85	$ 3.72	$ 7.23	$ 8.45
Nonvested, Weighted Average Remaining Vesting Period, Other Than Options, Nonvested			6 months	10 months 24 days	1 year 9 months 18 days	2 years 1 month 6 days
Performance based restricted stock
Summary Of Restricted Stock Activity [Line Items]
Outstanding beginning, Other than options			2,219,818	2,045,634	2,803,367
Restricted stock awards, granted in period				785,000	716,600
Vested, Other than options			(289,671)	(350,408)	(701,233)
Forfeited or Canceled, Other than options			(1,800,218)	(260,408)	(773,100)
Outstanding ending, Other than options			129,929	2,219,818	2,045,634	2,803,367
Outstanding beginning, Weighted Average Exercise Price, Other than options			$ 4.47	$ 5.83	$ 8.18
Granted, Weighted Average Exercise Price, Other than options				1.98	3.17
Vested, Weighted Average Grant Date Fair Value			(4.68)	(4.71)	(10.97)
Forfeited or Canceled, Weighted Average Exercise Price, Other than options			(4.43)	(7.32)	(7.22)
Outstanding ending , Weighted Average Exercise Price, Other than options			$ 4.51	$ 4.47	$ 5.83	$ 8.18
Nonvested, Weighted Average Remaining Vesting Period, Other Than Options, Nonvested			0 years	9 months 18 days	2 years	2 years 4 months 24 days
Allocated share-based compensation expense			$ 0.2	$ 0.9	$ 3.5
Performance based restricted stock | Employees and Consultant [Member]
Summary Of Restricted Stock Activity [Line Items]
Restricted stock awards, granted in period	41,600	164,978
Allocated share-based compensation expense				$ 0.0
Restricted Stock Units (RSUs) [Member]
Summary Of Restricted Stock Activity [Line Items]
Outstanding beginning, Other than options			1,615,953	736,400	326,667
Restricted stock awards, granted in period				2,678,743	688,836
Vested, Other than options			(997,644)	(1,732,523)	(219,103)
Forfeited or Canceled, Other than options			(190,000)	(66,667)	(60,000)
Outstanding ending, Other than options			428,309	1,615,953	736,400	326,667
Outstanding beginning, Weighted Average Exercise Price, Other than options			$ 2.24	$ 3.89	$ 8.52
Granted, Weighted Average Exercise Price, Other than options				1.77	3.18
Vested, Weighted Average Grant Date Fair Value			(2.44)	(2.18)	(8.29)
Forfeited or Canceled, Weighted Average Exercise Price, Other than options			(1.00)	(3.20)	(4.89)
Outstanding ending , Weighted Average Exercise Price, Other than options			$ 1.42	$ 2.24	$ 3.89	$ 8.52
Nonvested, Weighted Average Remaining Vesting Period, Other Than Options, Nonvested			1 year 3 months 18 days	2 years 2 months 12 days	2 years 2 months 12 days	2 years 6 months