Segment Information - Schedule of Segment Information (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	Dec. 31, 2015
Schedule of Statement of Income Components [Line Items]
Total revenue	$ 24,957	$ 27,361	$ 30,305	$ 29,130	$ 29,774	$ 30,826	$ 34,024	$ 31,898	$ 111,753	$ 126,522	$ 116,704
Operating income (loss)									(9,219)	4,523	1,482
Depreciation and amortization expense									3,164	4,202	1,708
EPM [Member]
Schedule of Statement of Income Components [Line Items]
Total revenue									49,913	64,703	53,907
Operating income (loss)									1,519	8,820	7,219
Depreciation and amortization expense									2,241	2,872	495
ERP [Member]
Schedule of Statement of Income Components [Line Items]
Total revenue									51,858	45,692	47,180
Operating income (loss)									5,620	4,292	4,864
Depreciation and amortization expense									790	971	814
Classic Consulting [Member]
Schedule of Statement of Income Components [Line Items]
Total revenue									9,982	16,127	15,617
Operating income (loss)									(1,380)	1,991	1,128
Depreciation and amortization expense										169	211
Corporate [Member]
Schedule of Statement of Income Components [Line Items]
Operating income (loss)									(14,978)	(10,580)	(11,729)
Depreciation and amortization expense									$ 133	$ 190	$ 188