ACQUISITION (Schedules of Pro Forma Information) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended								10 Months Ended	12 Months Ended
	Mar. 14, 2016	Feb. 28, 2018	Nov. 30, 2017	Aug. 31, 2017	May 31, 2017	Feb. 28, 2017	Nov. 30, 2016	Aug. 31, 2016	May 31, 2016	Dec. 31, 2015	Feb. 28, 2018	Feb. 28, 2017	Feb. 29, 2016
Business Acquisition [Line Items]
Net income (loss)		$ (4,767)	$ 11,806	$ 12,232	$ (2,654)	$ (4,239)	$ (1,527)	$ 521	$ (2,659)		$ 16,617	$ (7,904)	$ 16,940
Income tax effects											$ 10,681	(1,563)	4,572
LoJack [Member]
Business Acquisition [Line Items]
Revenues												356,357	408,464
Net income												$ 1,132	$ 5,069
Basic												$ 0.03	$ 0.14
Diluted												$ 0.03	$ 0.14
Basic												35,917	36,448
Diluted												36,397	36,950
Net income (loss)	$ 973									$ 3,197
Increase (decrease) in revenue for fair valuation of deferred revenue												$ 1,807	$ (1,807)
Amortization of intangible assets and depreciation of property, equipment and improvements acquired												(309)	(7,402)
Acquisition and integration expenses												4,513	(4,168)
Net increase (decrease) in pretax income (loss)												11,323	(14,519)
Income tax effects												(2,287)	2,648
Change in net income (loss)												9,036	(11,871)
LoJack [Member] | Fair Value Adjustment to Inventory [Member]
Business Acquisition [Line Items]
Amortization of intangible assets and depreciation of property, equipment and improvements acquired												$ 4,339	$ (4,339)