ACQUISITION OF VISLINK (Details Textual) - USD ($) $ in Thousands		1 Months Ended		3 Months Ended		9 Months Ended
	Feb. 02, 2017	Mar. 17, 2017	Feb. 02, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other				$ 451	$ 378	$ 451	$ 378
Repayments of Notes Payable						2,000	0
Gain (Loss) on Extinguishment of Debt				$ 12	$ 0	3,999	$ 0
Proceeds from Customers						$ 1,100
Vislink Communication Systems [Member]
Business Acquisition [Line Items]
Notes Payable	$ 4,900		$ 4,900
Payments to Acquire Businesses, Gross	$ 16,000		6,500
Business Combination, Consideration Transferred, Liabilities Incurred			9,500
Debt Instrument, Description of Variable Rate Basis	LIBOR plus 1.9%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 31,500		31,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	$ 4,600		$ 4,600
Repayments of Notes Payable		$ 2,000
Extinguishment of Debt, Amount		$ 2,900
Revenue Reduction Annualized Rate	0.60%
Vislink Communication Systems [Member] | Minimum [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life						1 year
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life						3 years
Vislink Communication Systems [Member] | Maximum [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life						10 years
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life						10 years