Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net loss	$ (18,000)	$ (13,478)
Adjustments to reconcile net loss to net cash provided by operating activities:
Change in allowance for doubtful accounts	(45)	3,033
Amortization and write-off of deferred financing fees	316	388
Depreciation and amortization	23,960	25,773
Impairment loss - satellite network	6,656
Stock-based compensation	3,248	3,150
Foreign exchange (gain) loss	(1,017)	338
Deferred income taxes	(637)	(464)
Other	1,266	1,109
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	2,453	9,345
Inventories	3,706	1,592
Prepaid expenses and other assets	(2,940)	1,840
Accounts payable and accrued liabilities	(1,715)	(9,416)
Deferred revenue	715	(1,313)
Other liabilities	(1,331)	(1,113)
Net cash provided by operating activities	16,635	20,784
Cash flows from investing activities:
Capital expenditures	(10,242)	(10,517)
Capital expenditures associated with the subscription model	(2,376)	(217)
Net cash used in investing activities	(12,618)	(10,734)
Cash flows from financing activities:
Purchases of common stock under share repurchase program		(2,527)
Principal payments of long-term debt	(5,000)
Payments under revolving credit facility	(10,000)	(15,000)
Proceeds from revolving credit facility		15,000
Payments under the Paycheck Protection Program		(7,588)
Proceeds from the Paycheck Protection Program		7,588
Proceeds from issuance of common stock under employee stock purchase plan	533	430
Net cash used in financing activities	(14,467)	(2,097)
Effect of exchange rate changes on cash and cash equivalents	(288)	144
Net (decrease) increase in cash and cash equivalents	(10,738)	8,097
Beginning of period	40,384	54,258
End of period	29,646	62,355
Cash paid for:
Interest	4,093	10,000
Income taxes	1,728	2,745
Noncash investing and financing activities:
Capital expenditures incurred not yet paid	1,326	1,446
Stock-based compensation related to capital expenditures	237	$ 247
Series A convertible preferred stock dividend paid in kind	29
Common stock issued as form of payment for MPUs	$ 352