Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedule of estimated useful lives of the assets

	%
Installed products		20-33
Computers and electronic equipment		10 - 33 (mainly 33)
Office furniture and equipment		6 - 15
Motor vehicles		15 - 20 (mainly 20)
Network installation		10 - 33
Buildings		6.67
Leasehold improvements		Over the term of the lease, ncluding the option term or the useful lives of the assets, whichever is shorter

Schedule of product warranty liability

	Year ended December 31,
	2018			2017
Balance, beginning of the year		567			604
Warranties issued during the year		346			468
Settlements made during the year		(118	)		(145	)
Expirations		(351	)		(360	)
Balance end of year		444			567

Schedule of topic 606 on the Company's consolidated financial statements

	Balance at December 31, 2017			New Revenue Standard Adjustment			Balance at January 1, 2018
Assets
Prepaid and other current assets	$	2,865		$	555		$	3,420
Other assets		1,116			(199	)		917
Shareholders’ Equity
Accumulated Deficit		(69,597	)		356			(69,241	)

	Impact of changes in accounting policies Year ended December 31, 2018
	As reported		Adj.			Balances without adoption of Topic 606
Service revenue		52,543		344			52,887
Product revenue		25,243		(268	)		24,975
Total revenues		77,786		76			77,862
Cost of revenues		36,778		-			36,778
Research and development expenses		4,707		-			4,707
Selling and marketing expenses		14,560		29			14,589
General and administrative expenses		11,169		-			11,169
Amortization of intangible assets		456		-			456
One time acquisition related costs		300		-			300
Financial expenses		1,133		-			1,133
Income tax expense		1,753		(5	)		1,748
Others		3		-			3
Net income		6,927		52			6,979

Schedule of disaggregation of revenue

	Reportable segments results of operations for the year ended December 31, 2018
	Cellocator segment		MRM segment		Elimination			Total
Revenue recognized:
At a point of time		22,137		10,733		(7,627	)		25,243
Over a period of time		1,627		51,669		(753	)		52,543
		24,764		62,402		(8,380	)		77,786

Schedule of receivables, contracts assets, and contract liabilities from contracts with customers

	Balance at December 31, 2018		Balance at December 31, 2017
Contract assets	$	808	$	973
Contract liabilities	$	267	$	313

Schedule of estimated using the Black-Scholes-Merton option-pricing model

	Year ended December 31,
	2018		2017		2016
Risk free interest rate		0.78%-2.96%		0.86%-1.39%		0.8%-1.00%
Dividend yield		0%		0%		0%
Expected volatility		40.16%-51.76%		52.25%-57.73%		55.81%-60.84%
Expected term (in years)		4.00-5.50		4.00-5.50		4.00-5.50
Forfeiture rate		0%		0%		2%

Schedule of changes in the allowance for doubtful accounts

	Year ended December 31,
	2018			2017
Balance at beginning of the year		1,127			1,281
Deductions during the year		(57	)		(992	)
Charged to expenses		539			802
Foreign currency translation adjustment		(145	)		36
Balance at end of year		1,464			1,127