CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Operating Lease, Liability, Current	$ 1,622	$ 1,584
Current Assets:
Cash and cash equivalents	45,116	49,766
Accounts receivable	11,172	13,177
Investments, at fair value	37,272	50,324
Income Taxes Receivable, Current	658	1,150
Other current assets	2,168	2,544
Total current assets	96,386	116,961
Long-term Investments	8,154	8,154
Long-term Investments Carried at Fair Value	3,243	4,238
Goodwill	19,804	19,804
Deferred income taxes	3,831	2,216
Operating lease right-of-use assets	7,220	7,562
Intangible assets, net	14,833	15,256
Property and equipment, net of accumulated depreciation of $7,570 and $7,395	3,931	4,152
Other long-term assets	400	364
Total assets	157,802	178,707
Current liabilities:
Accounts payable and accrued liabilities	1,676	2,145
Dividends payable	4,834	7,362
Compensation and benefits payable	2,323	9,975
Accrued stock repurchases	920	0
Income taxes payable	323	289
Total current liabilities	11,698	21,355
Accrued dividends	411	1,303
Operating Lease, Liability, Noncurrent	7,304	7,762
Total liabilities	19,413	30,420
Commitments and contingencies
Stockholders' Equity:
Common stock, $0.01 par value, authorized 25,000,000 shares, issued 10,548,103 and outstanding 8,780,041 shares at March 31, 2020; issued 10,306,570 and outstanding 8,881,086 shares at December 31, 2019	106	103
Additional paid-in capital	206,267	203,441
Treasury stock, at cost - 1,768,061 shares at March 31, 2020; 1,425,483 shares at December 31, 2019	(69,965)	(63,281)
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	(6,185)	(2,943)
Retained earnings	8,166	10,967
Total stockholders' equity	138,389	148,287
Total liabilities and stockholders' equity	$ 157,802	$ 178,707