Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net (loss) income	$ (20,935,000)	$ 71,746,000
Adjustments to reconcile net (loss) income to net cash used in operations
Depreciation and amortization	227,000	230,000
Net unrealized losses (gains) on marketable securities	44,409,000	(76,068,000)
Realized gains on sales of marketable securities	(14,249,000)	(18,478,000)
Deferred income taxes	(9,119,000)	23,227,000
(Increase) decrease in current assets
Accounts receivable, net	2,191,000	(2,702,000)
Inventories	(8,000)	6,000
Prepaid expenses and other assets	(70,000)	129,000
Income tax receivable	(3,501,000)	601,000
Increase (decrease) in liabilities
Accounts payable	(280,000)	(242,000)
Accrued liabilities	(3,583,000)	994,000
Income tax payable	(6,244,000)	1,548,000
Net cash used in operating activities	(13,126,000)	(3,178,000)
Cash flows from investing activities
Proceeds from sales of marketable securities	80,570,000	20,002,000
Purchases of marketable securities	(117,678,000)	(39,995,000)
Purchases of property, plant and equipment	(3,000)	(29,000)
Net cash used in investing activities	(37,111,000)	(20,022,000)
Cash flows from financing activities
Payment to margin loan principal	(14,000)	(14,493,000)
Borrowing from margin loan account	43,014,000	17,000,000
Payment of real estate loan principal	(73,000)	(59,000)
Net cash provided from financing activities	42,927,000	2,448,000
Decrease in cash and restricted cash and cash equivalents	(7,310,000)	(20,752,000)
Cash and restricted cash and cash equivalents
Beginning of period	14,639,000	28,963,000
End of period	7,329,000	8,211,000
Interest paid during period	269,000	163,000
Net income taxes paid (refunded)	12,794,000	(441,000)
Subscription and Circulation [Member]
Increase (decrease) in liabilities
Deferred subscriptions	(156,000)	(398,000)
Professional Fees [Member]
Increase (decrease) in liabilities
Deferred subscriptions	696,000	16,000
License and Maintenance [Member]
Increase (decrease) in liabilities
Deferred subscriptions	$ (2,504,000)	$ (3,787,000)