Segment and Geographic Information - Schedule of Segment Information - Operations (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 39,988	$ 39,248	$ 39,935	$ 40,449	$ 42,200	$ 43,027	$ 44,732	$ 45,633	$ 159,620	$ 175,592
Depreciation expense									5,485	4,763
Amortization									152	513
(Loss) income from operations	1,608	(2,256)	(5,740)	(3,691)	(419)	(1,321)	267	962	(10,079)	(511)
(Loss) income from continuing operations before income taxes	$ 1,270	$ (2,960)	$ (7,765)	$ (4,250)	$ (1,150)	$ (2,176)	$ (668)	$ 630	(13,705)	(3,364)
Operating Segments | Personal Information Services
Segment Reporting Information [Line Items]
Revenue									153,151	163,702
Depreciation expense									5,385	4,452
Amortization									152	187
(Loss) income from operations									(4,179)	14,448
(Loss) income from continuing operations before income taxes									(7,805)	11,766
Operating Segments | Insurance And Other Consumer Services
Segment Reporting Information [Line Items]
Revenue									6,287	9,817
Depreciation expense									100	145
Amortization									0	326
(Loss) income from operations									1,933	(909)
(Loss) income from continuing operations before income taxes									1,933	(909)
Operating Segments | Bail Bonds Industry Solutions
Segment Reporting Information [Line Items]
Revenue									182	2,073
Depreciation expense									0	107
Amortization									0	0
(Loss) income from operations									(46)	(1,849)
(Loss) income from continuing operations before income taxes									(46)	(1,849)
Corporate
Segment Reporting Information [Line Items]
Revenue									0	0
Depreciation expense									0	59
Amortization									0	0
(Loss) income from operations									(7,787)	(12,201)
(Loss) income from continuing operations before income taxes									$ (7,787)	$ (12,372)