SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Income Taxes) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Mar. 31, 2018
Operating Loss Carryforwards [Line Items]
Valuation allowance	$ 15,231	$ 0
U.S. Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	60,400
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 66,300