Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018	Jan. 01, 2019
Contingencies And Commitments [Line Items]
Operating lease liability				$ 300
Right-of-use asset	$ 501	$ 501		$ 300
Sublease income		0	$ 0
Operating lease payments		$ 500
Operating lease, term of contract	9 months	9 months
Operating lease, discount rate	7.50%	7.50%
Sale of SSL, Nov. 02, 2012 [Member] | Pre Closing Taxes Indemnification [Member]
Contingencies And Commitments [Line Items]
Indemnification refund receivable	$ 600	$ 600	2,400
Indemnification refund received	1,800
Globalstar do Brasil S.A. [Member]
Contingencies And Commitments [Line Items]
Loss contingency accrual	$ 200	$ 200	$ 200