Segment Information - Schedule of Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Schedule of Statement of Income Components [Line Items]
Total revenue	$ 25,129	$ 29,130
Operating income (loss)	(4,054)	(5,399)
Depreciation and amortization expense	636	811
EPM [Member]
Schedule of Statement of Income Components [Line Items]
Total revenue	10,949	14,307
Operating income (loss)	(628)	899
Depreciation and amortization expense	448	562
ERP [Member]
Schedule of Statement of Income Components [Line Items]
Total revenue	13,145	11,350
Operating income (loss)	1,595	929
Depreciation and amortization expense	172	198
Classic Consulting [Member]
Schedule of Statement of Income Components [Line Items]
Total revenue	1,035	3,473
Operating income (loss)	(677)	(25)
Depreciation and amortization expense		3
Corporate [Member]
Schedule of Statement of Income Components [Line Items]
Operating income (loss)	(4,344)	(7,202)
Depreciation and amortization expense	$ 16	$ 48