Organization and Nature of Business; Basis of Presentation; Principles of Consolidation; Significant Accounting Policies - Schedule of Product Warranty Reserve Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning balance	$ 176	$ 31	$ 192	$ 1
Provisions	145	50	266	80
Warranty expenses incurred	(122)	(20)	(259)	(20)
Ending balance	$ 199	$ 61	$ 199	$ 61