Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net loss	$ (10,391)	$ (6,837)
Adjustments to reconcile net loss to net cash provided by operating activities:
Change in allowance for doubtful accounts	263	1,301
Amortization and write-off of deferred financing fees	158	194
Depreciation and amortization	12,232	13,364
Impairment loss - satellite network	6,656
Stock-based compensation	1,761	1,679
Foreign exchange (gain) loss	(912)	106
Deferred income taxes	(420)	(20)
Other	642	580
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(4,323)	823
Inventories	975	(608)
Prepaid expenses and other assets	(3,315)	2,424
Accounts payable and accrued liabilities	3,123	(3,160)
Deferred revenue	888	(1,005)
Other liabilities	(662)	(634)
Net cash provided by operating activities	6,675	8,207
Cash flows from investing activities:
Capital expenditures	(4,696)	(4,843)
Capital expenditures associated with the subscription model	(955)
Net cash used in investing activities	(5,651)	(4,843)
Cash flows from financing activities:
Purchases of common stock under share repurchase program		(2,527)
Proceeds from revolving credit facility		15,000
Principal payments of long-term debt	(2,500)
Net cash (used in) provided by financing activities	(2,500)	12,473
Effect of exchange rate changes on cash and cash equivalents	(567)	17
Net (decrease) increase in cash and cash equivalents	(2,043)	15,854
Beginning of period	40,384	54,258
End of period	38,341	70,112
Cash paid for:
Interest	2,063
Income taxes	1,647	2,666
Noncash investing and financing activities:
Capital expenditures incurred not yet paid	1,396	1,065
Stock-based compensation related to capital expenditures	95	$ 113
Preferred stock dividend	$ 12