Revenue - Schedule of Disaggregation of Revenue (Timing of Transfer) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Total net revenues	$ 16,453	$ 19,559	$ 46,458	$ 56,885
Transferred at Point in Time [Member]
Total net revenues	13,098		35,472
Transferred Over Time [Member]
Total net revenues	3,355		10,986
Cinema [Member]
Total net revenues	11,560		33,438
Cinema [Member] | Transferred at Point in Time [Member]
Total net revenues	9,872		28,159
Cinema [Member] | Transferred Over Time [Member]
Total net revenues	1,688		5,279
Digital Media [Member]
Total net revenues	5,050		13,593
Digital Media [Member] | Transferred at Point in Time [Member]
Total net revenues	3,399		7,935
Digital Media [Member] | Transferred Over Time [Member]
Total net revenues	1,651		5,658
Other [Member]
Total net revenues	16		49
Other [Member] | Transferred at Point in Time [Member]
Total net revenues
Other [Member] | Transferred Over Time [Member]
Total net revenues	16		49
Eliminations [Member]
Total net revenues	(173)		(622)
Eliminations [Member] | Transferred at Point in Time [Member]
Total net revenues	(173)		(622)
Eliminations [Member] | Transferred Over Time [Member]
Total net revenues