Deferred Revenues (Tables)

12 Months Ended

Dec. 31, 2016

Deferred Revenue Disclosure [Abstract]

Summary of Deferred Revenues

Deferred revenues consisted of the following:

	December 31,
	2016			2015
Service activation fees	$	7,594		$	10,800
Prepaid services		2,777			2,624
Prepaid product revenues		—			—
Extended warranty revenues		21			252
		10,392			13,676
Less current portion		(7,414	)		(7,652	)
Long-term portion	$	2,978		$	6,024