REVENUE RECOGNITION (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Deferred Revenue Arrangement [Line Items]
Amortization Of Deferred Equipment Revenue	$ 1,273,000	$ 951,000	$ 3,401,000	$ 2,762,000
Unbilled Receivables, Current	$ 0		0		$ 170,000
Avis Budget Car Rental LLC [Member]
Deferred Revenue Arrangement [Line Items]
Revenue Recognition, Milestone Method, Revenue Recognized			$ 750,000
Revenue Recognition, Milestone Method, Description			Milestone payments are recognized as revenue upon achievement of the milestone only if the following conditions are met: (i) there is substantive uncertainty at the date of entering into the arrangement that the milestone would be achieved; (ii) the milestone is commensurate with either the vendor’s performance to achieve the milestone or the enhancement of the value of the delivered item by the vendor; (iii) the milestone relates solely to past performance; and (iv) be reasonable in relation to the effort expended to achieve the milestone.