Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 25,180	$ (15,524)
Adjustments to reconcile net income (loss) to net cash used in operating activities
Depreciation and amortization	124	179
Stock compensation expense	3,632	4,346
Deferred income taxes	(2,507)	1,057
Right of use assets	113	434
Gain on exchange of intangible assets, net	(33,916)	(93)
Gain on sale of intangible assets, net	(961)	0
Loss from disposal of long-lived assets, net	8	0
Changes in operating assets and liabilities
Non-trade receivable	2,926	0
Prepaid expenses and other assets	377	974
Accounts payable and other accrued expenses	(2,556)	(1,558)
Accrued severance and other related charges	95	0
Operating lease liabilities	(186)	(531)
Contingent liability	1,054	10,000
Deferred revenue	3,542	(1,525)
Other liabilities	(65)	(120)
Net cash used in operating activities	(3,140)	(2,361)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of intangible assets and other related costs	(3,966)	(5,400)
Proceeds from sale of spectrum	1,301	0
Net cash used in investing activities	(2,665)	(5,400)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from stock option exercises	0	1,617
Repurchases of common stock	0	(2,027)
Payments of withholding tax on net issuance of restricted stock	(642)	(661)
Net cash used in financing activities	(642)	(1,071)
Net change in cash and cash equivalents and restricted cash	(6,447)	(8,832)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH
Cash and cash equivalents and restricted cash at beginning of the period	55,024	68,124
Cash and cash equivalents and restricted cash at end of the period	48,577	59,292
Cash paid during the period:
Operating leases paid	569	593
Non-cash investing activity:
Capitalized change in estimated asset retirement obligations	(14)	0
Network equipment provided in exchange for wireless licenses	0	47
Derecognition of contingent liability related to sale of intangible assets	1,172	0
Right of use assets new leases	321	248
Right of use assets modifications and renewals	$ 37	$ 247