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Revenue - Schedule of Deferred Charges Activity (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Deferred charges beginning balance	$ 1,438
Additions during the period	469
Recognized as cost of sales	(542)
Deferred charges ending balance	1,365
June 30, 2020 [Member]
Recognized as cost of sales	680
June 30, 2021 [Member]
Recognized as cost of sales	524	[1]
June 30, 2022 and Thereafter [Member]
Recognized as cost of sales	$ 161	[1]
[1] Amounts included in other assets in the Company's unaudited condensed consolidated balance sheets at June 30, 2019.

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