CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Revenues	$ 275,769	$ 269,554
Operating expenses
Direct costs and expenses for advisors	159,921	156,630
Selling, general and administrative	95,400	91,046
Depreciation and amortization	7,771	12,721
Operating income	12,677	9,157
Interest income	116	107
Interest expense	(6,688)	(6,821)
Foreign currency transaction gain (loss)	7	(343)
Income before taxes	6,112	2,100
Income tax provision	435	4,198
Net income (loss)	5,677	(2,098)
Net income attributable to non-controlling interest		32
Net income (loss) attributable to ISG	$ 5,677	$ (2,130)
Weighted average shares outstanding:
Basic (in shares)	44,673	43,025
Diluted (in shares)	46,067	43,025
Earnings (loss) per share attributable to ISG:
Basic (in dollars per share)	$ 0.13	$ (0.05)
Diluted (in dollars per share)	$ 0.12	$ (0.05)
Comprehensive income:
Net income (loss)	$ 5,677	$ (2,098)
Foreign currency translation, net of tax benefit (expense) of $470 and $(1,270), respectively.	(1,489)	2,134
Comprehensive income:	4,188	36
Comprehensive income attributable to non-controlling interest		32
Comprehensive income attributable to ISG	$ 4,188	$ 4