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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)
9 Months Ended
Sep. 14, 2018
Dec. 31, 2019
Mar. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Change in fair value contingent consideration in other expense   $ 500,000  
HNT tools business | Disposed of by Sale      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Contingent consideration related to the divestiture, measurement period 2 years    
Change in fair value contingent consideration in other expense   500,000  
Disposal group, not discontinued operation, change in amount of contingent consideration, asset   200,000 $ 800,000
Contingent consideration, change in fair value of contingent consideration   $ 24,000  
HNT tools business | Disposed of by Sale | Maximum      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Contingent consideration related to the divestiture $ 4,000,000.0