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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2020
Oct. 31, 2019
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Mar. 31, 2020
Assets [Abstract]                
Money market funds       $ 45,132   $ 45,132   $ 128
Liabilities [Abstract]                
Contingent consideration               220
Payments of contingent consideration $ 219 $ 9,600 $ 500          
Adjustments to contingent consideration liabilities       0 $ 1,100 0 $ 1,500  
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]                
Assets [Abstract]                
Money market funds       45,132   45,132   128
Liabilities [Abstract]                
Contingent consideration               0
Significant Other Observable Inputs (Level 2) [Member]                
Assets [Abstract]                
Money market funds       0   0   0
Liabilities [Abstract]                
Contingent consideration               0
Significant Unobservable Inputs (Level 3) [Member]                
Assets [Abstract]                
Money market funds       $ 0   $ 0   0
Liabilities [Abstract]                
Contingent consideration               $ 220