ACQUISITIONS (Schedule of intangible assets acquired) (Details) - VirBELA LLC $ in Thousands	Nov. 29, 2018 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets purchased	$ 2,331
Trade name
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets purchased	1,169
Existing technology
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets purchased	297
Non-competition agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets purchased	125
Customer contracts
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets purchased	$ 740