COMMITMENTS AND CONTINGENCIES - Narrative (Details)			1 Months Ended					12 Months Ended			36 Months Ended
	Jul. 14, 2020 USD ($)	Oct. 13, 2017 USD ($)	Feb. 28, 2021 USD ($)	Apr. 30, 2020 USD ($)	Sep. 30, 2018 USD ($)	Oct. 31, 2017 patent	Mar. 31, 2016 subsidiary patent	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($) company	Mar. 31, 2019 USD ($)	Mar. 31, 2021 USD ($) company	Feb. 05, 2020 USD ($)	Apr. 03, 2019 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Number of companies acquired | company									2		2
Fair value of contingent liability									$ 1,748,000
Payment of contingent consideration								$ 1,748,000	0	$ 2,851,000
Number of subsidiary entities | subsidiary							2
Number of patents allegedly infringed | patent						3	5
Loss contingency, damages awarded, value					$ 2,800,000
Unconditional purchase obligation								55,300,000			$ 55,300,000
Pre-Suit Damages
Commitments and Contingencies Disclosure [Line Items]
Loss contingency, damages awarded, value	$ 3,500,000	$ 3,500,000
Post-Suit Damages
Commitments and Contingencies Disclosure [Line Items]
Loss contingency, damages awarded, value	$ 2,250,000	$ 2,250,000
Minimum
Commitments and Contingencies Disclosure [Line Items]
Estimate of potential enhancement								0			0
Maximum
Commitments and Contingencies Disclosure [Line Items]
Estimate of potential enhancement								$ 2,800,000			$ 2,800,000
Gigavation
Commitments and Contingencies Disclosure [Line Items]
Fair value of contingent liability									700,000			$ 800,000
Payment of contingent consideration			$ 700,000
Eastwind
Commitments and Contingencies Disclosure [Line Items]
Fair value of contingent liability									$ 1,000,000.0				$ 1,000,000
Payment of contingent consideration				$ 1,000,000.0
Efflux Systems, Inc.
Commitments and Contingencies Disclosure [Line Items]
Payment of contingent consideration										500,000
Simena LLC
Commitments and Contingencies Disclosure [Line Items]
Payment of contingent consideration										$ 5,000,000.0