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STOCK-BASED COMPENSATION (Summary of Restricted Stock Activity and Performance Stock Units) (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Unvested restricted stock        
Summary Of Restricted Stock Activity [Line Items]        
Outstanding beginning, Other than options   522,269    
Restricted stock awards, granted in period   200,000    
Vested, Other than options   (200,000)    
Outstanding ending, Other than options   522,269   522,269
Outstanding beginning, Weighted Average Exercise Price, Other than options   $ 0.85    
Granted, Weighted Average Exercise Price, Other than options   0.37    
Vested, Weighted Average Grant Date Fair Value   (0.37)    
Outstanding ending , Weighted Average Exercise Price, Other than options   $ 0.85   $ 0.85
Nonvested, Weighted Average Remaining Vesting Period, Other Than Options, Nonvested   3 months 18 days   6 months
Allocated share-based compensation expense $ 0.2   $ 0.1  
Performance based restricted stock        
Summary Of Restricted Stock Activity [Line Items]        
Outstanding beginning, Other than options   129,929    
Restricted stock awards, granted in period   900,000    
Forfeited or Canceled, Other than options   (129,929)    
Outstanding ending, Other than options   900,000   129,929
Outstanding beginning, Weighted Average Exercise Price, Other than options   $ 4.51    
Granted, Weighted Average Exercise Price, Other than options   0.37    
Forfeited or Canceled, Weighted Average Exercise Price, Other than options   (4.51)    
Outstanding ending , Weighted Average Exercise Price, Other than options   $ 0.37   $ 4.51
Nonvested, Weighted Average Remaining Vesting Period, Other Than Options, Nonvested   2 years 9 months 18 days   0 years
Allocated share-based compensation expense   $ 0.0 $ 0.2  
Restricted Stock Units (RSUs) [Member]        
Summary Of Restricted Stock Activity [Line Items]        
Outstanding beginning, Other than options   428,309    
Restricted stock awards, granted in period   400,000 0  
Vested, Other than options   (23,063)    
Forfeited or Canceled, Other than options   (50,000)    
Outstanding ending, Other than options   755,246   428,309
Outstanding beginning, Weighted Average Exercise Price, Other than options   $ 1.42    
Granted, Weighted Average Exercise Price, Other than options   0.37    
Vested, Weighted Average Grant Date Fair Value   (2.71)    
Forfeited or Canceled, Weighted Average Exercise Price, Other than options   (2.39)    
Outstanding ending , Weighted Average Exercise Price, Other than options   $ 0.82   $ 1.42
Nonvested, Weighted Average Remaining Vesting Period, Other Than Options, Nonvested   2 years   1 year 3 months 18 days