INCOME TAXES - Net Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017
Deferred tax assets:
Net operating loss carryforwards	$ 6,680	$ 98,232
Stock-based compensation	1,993	2,742
Intangibles	5,918	8,100
Accrued liabilities	1,332	1,765
Allowance for doubtful accounts	852	1,075
Capital loss carryforwards	3,009	4,454
Other	648	457
Total deferred tax assets before valuation allowance	20,432	116,825
Less: Valuation allowance	(15,880)	(106,718)
Total deferred tax assets after valuation allowance	4,552	10,107
Deferred tax liabilities:
Depreciation and amortization	(4,552)	(10,107)
Intangibles	0	0
Total deferred tax liabilities	(4,552)	(10,107)
Net deferred tax	$ 0	$ 0