CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended	4 Months Ended
	Mar. 31, 2023	Apr. 30, 2024
Operating activities:
Net income	$ 8,278	$ 17,777
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation of property and equipment	172	62
Stock-based compensation	946	1,600
Deferred income taxes	0	2,690
Net gains on investment in marketable securities	(3,683)	(3,217)
Net gain on derivative instruments	(615)	(2,096)
Shares issued to an employee in lieu of cash compensation	385	554
Other noncash	(26)	(65)
Changes in operating assets and liabilities:
Accounts and other receivables	(501)	(761)
Prepaid expenses and other current assets	383	748
Long-term deposits	18	(206)
Other assets	113	110
Accounts payable	(68)	3
Accrued compensation	(1,259)	877
Other current liabilities	602	5,684
Deferred revenue	(1,189)	7,843
Other long-term liabilities	(33)	0
Net cash provided by operating activities	3,523	31,603
Investing activities:
Purchases of marketable securities and other investments	(54,954)	(58,848)
Proceeds from sale or maturities of marketable securities and other investments	30,771	60,698
Proceeds from sale of derivative instruments	5,844	4,377
Payments for settlement of derivative instruments	(1,369)	(4,771)
Net cash provided by (used in) investing activities	(19,708)	1,456
Financing activities:
Dividend payments to stockholders	(4,400)	(2,992)
Shares withheld to cover payroll taxes	(757)	(617)
Other financing activities	6	0
Net cash used in financing activities	(5,151)	(3,609)
Net increase (decrease) in cash and cash equivalents	(21,336)	29,450
Cash and cash equivalents:
Beginning of period	48,820	56,071
End of period	27,484	85,521
Supplemental disclosure of cash flow information:
Cash paid for income taxes	19	232
Supplemental disclosure of non-cash investing, and financing activities:
Dividends declared but not yet paid	1,015	0
Leased assets obtained in exchange for new operating lease liabilities	$ 0	$ 89