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Segment Reporting and Concentrations - Additional information (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020 USD ($) client	Jun. 30, 2019 USD ($) client	Jun. 30, 2020 USD ($) segment client	Jun. 30, 2019 USD ($) client	Dec. 31, 2019 USD ($) client
Segment Reporting Information [Line Items]
Number of Reportable Segments | segment			3
Operating Lease, Right-of-Use Asset | $	$ 6,296		$ 6,296		$ 7,005
Revenues | $	$ 13,863	$ 13,639	$ 28,393	$ 27,333
Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	10.00%	10.00%	10.00%	10.00%
Foreign Customer [Member] | Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	55.00%	54.00%	54.00%	53.00%
Foreign Customer [Member] | Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage			59.00%		60.00%
One Client [Member] | Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Number of clients	1	1	1
Concentration Risk, Percentage	16.00%	16.00%	15.00%	16.00%
Two clients [Member] | Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Number of clients			3
Concentration Risk, Percentage			40.00%
Three Clients [Member] | Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Number of clients					3
Concentration Risk, Percentage					44.00%
Client [Member] | Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Number of clients	0	0	0	0
Concentration Risk, Percentage	10.00%	10.00%	10.00%	10.00%

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Amount of lessee's right to use underlying asset under operating lease.

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