The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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ACCOUNTING POLICIES (Details 5) - USD ($)	3 Months Ended		12 Months Ended
ACCOUNTING POLICIES (Details 5) - USD ($)	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Finite-Lived Intangible Assets
Amortization of intangible assets	$ 918,000	$ 945,000	$ 3,972,000	$ 3,815,000
Estimated amortization expense for the next five years
Remainder of 2018	3,000,000		3,000,000
2019	2,700,000		2,700,000
2020	2,000,000		2,000,000
2021	1,700,000		1,700,000
2022	800,000		800,000
2023 and thereafter	3,600,000		$ 3,600,000
Technology
Finite-Lived Intangible Assets
Amortization of intangible assets	755,000	905,000
Sales and marketing
Finite-Lived Intangible Assets
Amortization of intangible assets	119,000	20,000
General and administrative
Finite-Lived Intangible Assets
Amortization of intangible assets	$ 44,000	$ 20,000