INCOME TAXES (Details) - 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, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income before income taxes
Domestic										$ (6,981)	$ (6,840)	$ 1,331
Foreign										9,081	1,516	6,812
Income (loss) before taxes	$ 2,229	$ 1,662	$ (1,228)	$ (563)	$ (9,423)	$ 1,982	$ 2,897	$ (780)		2,100	(5,324)	8,143
Current:
Federal										1,259	1,224	2,934
State										608	206	728
Foreign										3,006	1,528	1,485
Total current provision										4,873	2,958	5,147
Deferred:
Federal										(268)	(1,866)	(1,851)
State										(297)	23	(120)
Foreign										(110)	(61)	13
Total deferred benefit										(675)	(1,904)	(1,958)
Total										$ 4,198	$ 1,054	$ 3,189
U.S. federal statutory income tax rate (as a percent)										35.00%	35.00%	35.00%
Differences between the effective tax rates reflected in the total provision for income taxes and the U.S. federal statutory rate
Tax provision computed at 35%										$ 735	$ (1,863)	$ 2,850
Nondeductible expenses										445	1,131	565
State income taxes, net of federal benefit										94	66	291
Tax impact of foreign operations										258	1,809	283
Release of uncertain tax positions										389	(44)	(704)
Tax law change impact on deferred taxes										1,471
Tax law change impact on transition tax										601
Other										205	(45)	(96)
Total										$ 4,198	$ 1,054	$ 3,189
Effective income tax rates (as a percent)										199.90%	(19.80%)	39.20%
Allowance of foreign net operating loss carryovers	900									$ 900
Allowance foreign tax credit carryover tax benefit	700									700
Allowance foreign tax items, other	200									200
Provisional net expense recorded for TCJ Act	2,100
Tax benefit recorded	300
Deferred withholding and earnings distribution taxes remains in deferred tax liabilities	900									900
Remeasurement of deferred tax balances										1,500
Current deferred tax asset
Compensation related expenses					2,550						$ 2,550
Valuation allowance for deferred tax assets					(754)						(754)
Accruals and reserves					1,359						1,359
Total current deferred tax asset					3,155						3,155
Current deferred tax liability
Prepaids					(1,155)						(1,155)
Other					(270)						(270)
Total current deferred tax liability					(1,425)						(1,425)
Net current deferred tax asset					1,730						1,730
Noncurrent deferred tax asset
Compensation related expenses	2,138				617					2,138	617
Foreign currency translation	2,020				4,469					2,020	4,469
U.S. foreign tax credit carryovers	1,478				2,309					1,478	2,309
Foreign net operating loss carryovers	6,208				5,764					6,208	5,764
Accruals and Reserves	686									686
Other	475				516					475	516
Valuation allowance for deferred tax assets	(6,543)				(6,048)					(6,543)	(6,048)
Total noncurrent deferred tax asset	6,462				7,627					6,462	7,627
Noncurrent deferred tax liability
Depreciable assets	(277)				(344)					(277)	(344)
Prepaids	(481)									(481)
Intangible assets	(2,040)				(6,175)					(2,040)	(6,175)
Investment in foreign subsidiaries	(1,143)				(1,504)					(1,143)	(1,504)
Foreign earnings distribution taxes	(1,119)									(1,119)
Foreign intangibles and reserves	(450)									(450)
Total noncurrent deferred tax liability	(5,510)				(8,023)					(5,510)	(8,023)
Net noncurrent deferred tax asset/(liability)	952				(396)					952	(396)
Net deferred tax asset	952				1,334					952	1,334
Reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period
Balance, beginning of year				$ 3,033				$ 1,780	$ 4,050	3,033	1,780	$ 2,192
Additions as a result of tax positions taken during the current period										774	73	205
Additions as a result of tax positions taken during a prior period										630		270
Additions as a result of acquisitions											1,233
Reductions as a result of settlement with tax authorities											(9)
Reductions as a result of lapse of statute										(387)	(44)	(887)
Balance, end of year	4,050				$ 3,033					4,050	$ 3,033	1,780
State income tax expense recognized of interest and penalties related to uncertain tax positions										1,000
Unrecognized tax benefits that would impact the company's effective tax rate	$ 4,100									4,100
Scenario Forecast
Deferred:
U.S. federal statutory income tax rate (as a percent)									21.00%
Alsbridge
Differences between the effective tax rates reflected in the total provision for income taxes and the U.S. federal statutory rate
Reversal of unrealized tax benefit liability										500		500
Compass
Differences between the effective tax rates reflected in the total provision for income taxes and the U.S. federal statutory rate
Reversal of unrealized tax benefit liability										$ 800		$ 800