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STOCKHOLDERS' EQUITY, Restricted Stock and Stock Options (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
May 06, 2021
shares
Aug. 07, 2020
Director
shares
Jun. 16, 2020
shares
Feb. 20, 2020
Jun. 30, 2021
USD ($)
$ / shares
shares
Mar. 31, 2021
USD ($)
$ / shares
shares
Jun. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
shares
Jun. 30, 2021
USD ($)
$ / shares
shares
Jun. 30, 2020
USD ($)
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Shares [Abstract]                      
Outstanding, beginning balance (in shares)           81,000     81,000    
Granted (in shares)                 0    
Vested (in shares)                 0    
Canceled (in shares)                 0    
Outstanding, ending balance (in shares)         81,000       81,000   81,000
Vested (in shares)         81,000       81,000    
Exercisable, ending balance (in shares)         81,000       81,000    
Weighted Average Exercise Price Per Share [Abstract]                      
Outstanding, beginning balance (in dollars per share) | $ / shares           $ 7.79     $ 7.79    
Granted (in dollars per share) | $ / shares                 0    
Vested (in dollars per share) | $ / shares                 0    
Canceled (in dollars per share) | $ / shares                 0    
Outstanding, ending balance (in dollars per share) | $ / shares         $ 7.79       7.79   $ 7.79
Vested or expected to vest (in dollars per share) | $ / shares         7.79       7.79    
Exercisable, ending balance (in dollars per share) | $ / shares         $ 7.79       $ 7.79    
Weighted Average Remaining Contractual Term [Abstract]                      
Outstanding                 8 months 1 day   1 year 2 months 1 day
Vested or expected to vest                 8 months 1 day    
Exercisable                 8 months 1 day    
Aggregate Intrinsic Value [Abstract]                      
Outstanding, beginning balance | $           $ 0     $ 0    
Granted | $                 0    
Canceled | $                 0    
Vested | $                 0    
Outstanding, ending balance | $         $ 0       0   $ 0
Vested or expected to vest | $         0       0    
Exercisable, ending balance | $         $ 0       $ 0    
Restricted Stock [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Restricted shares granted to each director (in shares)   17,096                  
Shares [Abstract]                      
Nonvested restricted stock outstanding, beginning balance (in shares)           1,572,159     1,572,159    
Granted (in shares)                 650,809    
Canceled (in shares)                 0    
Vested (in shares)                 (498,936)    
Nonvested restricted stock outstanding, ending balance (in shares)         1,724,032       1,724,032   1,572,159
Weighted Average Grant Date Fair Value [Abstract]                      
Nonvested restricted stock outstanding, beginning balance (in dollars per share) | $ / shares           $ 2.77     $ 2.77    
Granted (in dollars per share) | $ / shares                 5.95    
Canceled (in dollars per share) | $ / shares                 0    
Vested (in dollars per share) | $ / shares                 3.04    
Nonvested restricted stock outstanding, ending balance (in dollars per share) | $ / shares         $ 3.86       $ 3.86   $ 2.77
Recognized restricted stock expense | $         $ 800   $ 300   $ 1,300 $ 600  
Unrecognized restricted stock expense | $         6,700       6,700   $ 3,200
Stock Options [Member]                      
Aggregate Intrinsic Value [Abstract]                      
Unrecognized pre-tax compensation expense | $         0       $ 0    
2020 Plan [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Number of shares available for issuance under incentive plan (in shares)     2,000,000                
2020 Plan [Member] | June 16, 2020 [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Stock option award issuance, plan duration                 10 years    
2020 Plan [Member] | February 25, 2021 [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Performance-based restricted stock compensation expense | $         300       $ 400    
2020 Plan [Member] | February 20, 2020 [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Performance-based restricted stock compensation expense | $         200   200   $ 400 200  
2020 Plan [Member] | First Anniversary Date [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Percentage of vesting of performance-based shares       20.00%              
2020 Plan [Member] | Second Anniversary Date [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Percentage of vesting of performance-based shares       30.00%              
2020 Plan [Member] | Third Anniversary Date [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Percentage of vesting of performance-based shares       50.00%              
Prior Plan [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Number of shares available for issuance under incentive plan (in shares)     2,000,000                
Prior Plan [Member] | February 28, 2019 [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Vesting period of performance-based shares                 3 years    
Prior Plan [Member] | Restricted Stock [Member]                      
Weighted Average Grant Date Fair Value [Abstract]                      
Outstanding restricted shares, intrinsic value | $         13,400       $ 13,400    
Prior Plan [Member] | Restricted Stock [Member] | February 28, 2019 [Member]                      
Weighted Average Grant Date Fair Value [Abstract]                      
Recognized restricted stock expense | $         $ 100   $ 100   $ 200 $ 300  
Non Employee Directors Plan [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Number of directors appointed | Director   2                  
Net share settlement for restricted stock (in shares)           154,973   58,451 154,973 58,451  
Decrease in equity due to payment of tax for employee | $           $ 1,000   $ 200 $ 1,000 $ 200  
Non Employee Directors Plan [Member] | Restricted Stock [Member]                      
Stockholders' Equity Note Details [Abstract]                      
Number of shares issued under incentive plan (in shares) 76,195   111,376                
Shares [Abstract]                      
Vested (in shares)   (12,762)