Segment Information Selected Financial Information By Segment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) segment	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			1
Insurance And Other Services Revenue	$ 38,994	$ 38,162	$ 71,872	$ 74,526
Investment income	2,654	1,880	3,399	3,206
Net realized gain (loss) on investments	288	83	441	186
Total Revenues	41,936	40,125	75,712	77,918
Operating expenses	33,122	31,779	61,673	63,121
Income (loss) before income taxes	8,814	8,346	14,039	14,797
Total assets	253,198	237,954	253,198	237,954	$ 248,913
Title Insurance
Segment Reporting Information [Line Items]
Insurance And Other Services Revenue	38,680	37,922	71,101	73,686
Investment income	2,125	1,715	2,739	2,877
Net realized gain (loss) on investments	264	81	407	144
Total Revenues	41,069	39,718	74,247	76,707
Operating expenses	32,424	31,176	60,216	61,677
Income (loss) before income taxes	8,645	8,542	14,031	15,030
Total assets	199,132	191,182	199,132	191,182
All Other
Segment Reporting Information [Line Items]
Insurance And Other Services Revenue	1,996	1,799	3,886	3,451
Investment income	529	165	660	329
Net realized gain (loss) on investments	24	2	34	42
Total Revenues	2,549	1,966	4,580	3,822
Operating expenses	2,246	2,043	4,304	3,860
Income (loss) before income taxes	303	(77)	276	(38)
Total assets	54,066	46,772	54,066	46,772
Intersegment Eliminations
Segment Reporting Information [Line Items]
Insurance And Other Services Revenue	(1,682)	(1,559)	(3,115)	(2,611)
Investment income	0	0	0	0
Net realized gain (loss) on investments	0	0	0	0
Total Revenues	(1,682)	(1,559)	(3,115)	(2,611)
Operating expenses	(1,548)	(1,440)	(2,847)	(2,416)
Income (loss) before income taxes	(134)	(119)	(268)	(195)
Total assets	$ 0	$ 0	$ 0	$ 0