Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue:
Revenue	$ 32,614	$ 32,757	$ 89,822	$ 95,315
Operating expenses:
Marketing, general and administrative	9,196	10,063	28,974	31,407
Reduction in value of long-lived assets	242	0	242	0
Depreciation, amortization and accretion	24,072	24,717	72,031	72,437
Total operating expenses	47,328	47,392	139,804	139,414
Loss from operations	(14,714)	(14,635)	(49,982)	(44,099)
Other (expense) income:
(Loss) gain on extinguishment of debt	(829)	0	1,835	0
Interest income and expense, net of amounts capitalized	(11,406)	(11,398)	(33,758)	(36,916)
Derivative gain (loss)	229	1,225	(2,210)	1,564
Foreign currency (loss) gain	(4,752)	266	(4,642)	(7,373)
Other	473	(346)	407	(912)
Total other (expense) income	(16,285)	(10,253)	(38,368)	(43,637)
Loss before income taxes	(30,999)	(24,888)	(88,350)	(87,736)
Income tax (benefit) expense	(114)	58	317	169
Net loss	(30,885)	(24,946)	(88,667)	(87,905)
Other comprehensive income (loss):
Foreign currency translation adjustments	3,185	(91)	3,269	3,844
Comprehensive loss	$ (27,700)	$ (25,037)	$ (85,398)	$ (84,061)
Net loss per common share:
Basic (USD per share)	$ (0.02)	$ (0.01)	$ (0.05)	$ (0.05)
Diluted (USD per share)	$ (0.02)	$ (0.01)	$ (0.05)	$ (0.05)
Weighted-average shares outstanding:
Basic (in shares)	1,793,144	1,670,315	1,755,362	1,632,554
Diluted (in shares)	1,793,144	1,670,315	1,755,362	1,632,554
Service revenue
Revenue:
Revenue	$ 27,848	$ 28,385	$ 76,551	$ 84,410
Operating expenses:
Cost of goods and services	9,648	8,580	27,848	25,955
Subscriber equipment sales
Revenue:
Revenue	4,766	4,372	13,271	10,905
Operating expenses:
Cost of goods and services	4,099	4,032	9,856	9,615
Cost of subscriber equipment sales - reduction in the value of inventory	$ 71	$ 0	$ 853	$ 0