CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities
Net loss	$ (31,610)	$ (16,349)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,319	1,125
Equity-based compensation	4,244	3,866
Change in fair value of warranty liability	13,176	2,800
Realized and unrealized gain on short term investments	(50)	16
Equity method investment loss	40	55
Asset retirement obligation accretion	16	15
Amortization of debt discount	1,442
Changes in operating assets and liabilities:
Accounts receivable	836	979
Other current assets	(434)	(46)
Other assets	(107)	27
Accounts payable	878	(364)
Deferred revenue	(10)	(34)
Accrued expenses and other liabilities	3,022	395
Operating lease right-of-use assets and liabilities	253	88
Net cash used in operating activities	(6,985)	(7,427)
Investing activities
Capitalization of costs and purchases of network assets, property, and equipment	(32)	(856)
Purchase of marketable securities	(5,918)
Sale and maturity of marketable securities	4,000	5,213
Purchase of internal use software	(163)	(341)
Net cash (used in) provided by investing activities	(2,113)	4,016
Financing activities
Payments towards debt	(28)	(27)
Proceeds from exercise of stock options	544	26
Net cash provided by (used in) financing activities	516	(1)
Effect of exchange rates on cash and cash equivalents	21	(5)
Net decrease in cash and cash equivalents	(8,561)	(3,417)
Cash and cash equivalents at beginning of period	81,878	47,230
Cash and cash equivalents at end of period	73,317	43,813
Non-cash financing information
Capital expenditure included in accounts payable	$ 278	$ 591