Note 3 - Segment Reporting Revenue (Details) - USD ($)		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Net gains (losses) on investments and other financial instruments		$ (22,027,000)	$ 21,913,000
Revenues		329,081,000	363,629,000
Services Revenue, Net		31,927,000	32,753,000
Mortgage segment
Revenues	[1]	315,084,000	302,370,000
Real Estate segment
Revenues	[1]	28,583,000	23,023,000
Accounts and notes receivable related to revenue service contracts		18,300,000		$ 10,800,000
Bad debt expense		0	0
All Other activities segment
Revenues		7,633,000	16,839,000
Valuation services
Services Revenue, Net		11,844,000	12,706,000
Title services
Services Revenue, Net		7,305,000	1,600,000
Asset management services
Services Revenue, Net		6,374,000	6,272,000
Mortgage services
Services Revenue, Net		3,133,000	644,000
Real estate agent services
Services Revenue, Net		410,000	0
All Other services
Services Revenue, Net		2,861,000	11,531,000
Operating Segments
Revenues		343,667,000	325,393,000
Intersegment Eliminations
Revenues		$ (192,000)	$ (516,000)

[1] Includes immaterial inter-segment revenues for the three months ended March 31, 2020 and 2019.