CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents	$ 33,325	$ 86,136
Investments in debt securities, at amortized cost:
Total Investments in debt securities, at amortized cost	64,988	6,547
Investments in equity securities, at fair value	25,845	27,726
Receivable from brokers	5,833	989
Investment advisory fees receivable	28,796	36,093
Receivable from affiliates	4,882	3,940
Finance lease	2,452	2,678
Goodwill and identifiable intangible assets	3,176	3,765
Deferred tax asset and income tax receivable	9,462	16,389
Other assets	6,643	5,623
Total assets	185,402	189,886
LIABILITIES AND STOCKHOLDERS' EQUITY
Income taxes payable	3,910	757
Lease liability obligations	5,208	5,431
Compensation payable	21,543	64,279
Securities Sold, not yet purchased	799	0
Payable to affiliates	3,843	3,982
Accrued expenses and other liabilities	38,973	36,529
Sub-total	74,276	110,978
5.875% Senior Notes (net of issuance costs of $16 and $34, respectively) (due June 1, 2021) (Note G)	24,215	24,191
Total liabilities	98,491	135,169
Commitments and contingencies (Note 10)
Stockholders' Equity
Preferred stock, $0.001 par value; 10,000,000 shares authorized; none issued and outstanding	0	0
Additional paid-in capital	21,219	17,033
Retained earnings	394,386	362,515
Accumulated other comprehensive loss	(165)	(204)
Treasury stock, at cost (8,142,732 and 7,846,436 shares, respectively)	(328,562)	(324,660)
Total stockholders' equity	86,911	54,717
Total liabilities and stockholders' equity	185,402	189,886
U.S. Treasuries [Member]
Investments in debt securities, at amortized cost:
Total Investments in debt securities, at amortized cost	64,988	0
U.K. Gilts [Member]
Investments in debt securities, at amortized cost:
Total Investments in debt securities, at amortized cost	0	6,547
Class A [Member]
Stockholders' Equity
Common stock	14	14
Class B [Member]
Stockholders' Equity
Common stock	$ 19	$ 19