BUSINESS ACQUISITIONS (Pro Forma Information) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	5 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Mar. 31, 2018
Business Acquisition [Line Items]
Net loss per common share - basic and diluted (in dollars per share)		$ (0.66)	$ (0.50)
Weighted average common shares outstanding - basic and diluted (in shares)		30,518	20,600
Aegis
Business Acquisition [Line Items]
Revenues	$ 106,186
Net loss	$ (11,849)
Revenues		$ 497,246	$ 761,642
Net loss attributable to Startek shareholders		$ (20,006)	$ (10,317)