DISCONTINUED OPERATIONS (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]
Equity as non- controlling interest in subsidiaries regarding its investment in Cyprus	$ 0	$ 123

Equity as non- controlling interest in subsidiaries regarding its investment in Cyprus.

No definition available.

Name:	ictsf_EquityAsNonControllingInterestInSubsidiariesRegardingItsInvestmentInCyprus
Namespace Prefix:	ictsf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant