ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	3 Months Ended
Jun. 30, 2018	Jun. 30, 2017
REVENUE RECOGNITION [Abstract]
Lease criteria minimum estimated economic life	75.00%
Lease criteria minimum fair value of lease payments at inception of lease	90.00%
Net Sales [Member] \| Cisco Systems [Member]
Concentration of risk [Abstract]
Percentage of concentration risk	40.00%	49.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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