REVENUE RECOGNITION (Schedule of Company's Revenues According to Company's Segments) (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Revenue	$ 154,419	$ 126,126
Airport Security and Other Aviation Services [Member]
Segment Reporting Information [Line Items]
Revenue	114,001	113,840
Authentication Technology [Member]
Segment Reporting Information [Line Items]
Revenue	$ 40,418	$ 12,286

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details