Wholly Owned Foreign Subsidiaries - Schedule of Financial Statements of Foreign Subsidiary (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Foreign Subsidiaries Financial Information Disclosure [Line Items]
Net revenue									$ 53,064,000	$ 40,958,000	$ 36,822,000
Net income (loss)	$ 2,809,000	$ 897,000	$ (1,116,000)	$ (990,000)	$ (874,000)	$ (586,000)	$ (524,000)	$ (1,886,000)	(5,812,000)	(3,870,000)	(6,370,000)
I.D. Systems GmbH [Member]
Foreign Subsidiaries Financial Information Disclosure [Line Items]
Net revenue									1,270,000	1,365,000	1,852,000
Net income (loss)									(406,000)	103,000	211,000
I.D. Systems Ltd [Member]
Foreign Subsidiaries Financial Information Disclosure [Line Items]
Net revenue									186,000	577,000	296,000
Net income (loss)									$ (340,000)	$ 141,000	$ (612,000)