CREDIT AGREEMENTS (Details) € in Thousands, £ in Thousands, SGD in Thousands, NZD in Thousands, AUD in Thousands, $ in Thousands			3 Months Ended	6 Months Ended
	Sep. 15, 2016 GBP (£)	Aug. 01, 2014 GBP (£)	Jun. 30, 2017 AUD	Jun. 30, 2017 USD ($)	Jun. 30, 2017 NZD	Jun. 30, 2017 SGD	Jun. 30, 2017 GBP (£)	Jun. 30, 2017 USD ($)	Jun. 30, 2017 EUR (€)	Sep. 15, 2016 USD ($)	Aug. 01, 2014 USD ($)
Lloyds
Line of Credit Facility [Line Items]
Debt Instrument, Term		2 years
Line of Credit Facility, Maximum Borrowing Capacity	£ 12,000	£ 15,000								$ 15,629	$ 19,536
Line of Credit Facility, Current Borrowing Capacity								$ 9,550
Line of credit facility, covenant, maximum credit dilution				5.00%
Additional borrowing availability								$ 8,702
Interest rates on outstanding borrowing			2.00%		2.00%	2.00%	2.00%	2.00%	2.00%
Minimum availability required							£ 2,000	$ 2,605
Debt Instrument, Renewal Term		3 months
Debt Instrument, Rolling Period				3 months
Lloyds | Credit Facility Lending based on Billed Revenue [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	£ 11,500									14,978
Eligible work in progress temporary receivables	83.00%
Lloyds | Credit Facility Lending based on Unbilled Revenue [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	£ 500									$ 651
Eligible work in progress permanent receivables	25.00%
Lloyds [Member]
Line of Credit Facility [Line Items]
Debt Turns in days				55
National Australia Bank Limited and Bank of New Zealand [Member] | Financial Guarantee Facility
Line of Credit Facility [Line Items]
Financial guarantee capacity			AUD 3,000					$ 2,307
Debt Instrument, Fee Percent				1.50%
Interest rates on financial guarantee requested			1.50%		1.50%	1.50%	1.50%	1.50%	1.50%
National Australia Bank Limited and Bank of New Zealand [Member] | Australian Receivables Facility [Member] [Domain]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			AUD 4,000					$ 3,076
National Australia Bank Limited [Member] | Financial Guarantee Facility
Line of Credit Facility [Line Items]
Debt Instrument, Fee Percent				0.30%
Lending Arrangements Belgium, Netherlands, Singapore, and Mainland China Banks | Overdraft Facility
Line of Credit Facility [Line Items]
Line of credit facility, average outstanding amount				$ 11,282
Debt, weighted average interest rate			3.07%		3.07%	3.07%	3.07%	3.07%	3.07%
Lending Arrangements Netherlands and Belgium Banks | Overdraft Facility | EURIBOR
Line of Credit Facility [Line Items]
Interest rates on outstanding borrowing			2.75%		2.75%	2.75%	2.75%	2.75%	2.75%
Base Rate | Lloyds
Line of Credit Facility [Line Items]
Debt instrument, interest rate increase				1.75%
Singapore Subsidiary | Overdraft Facility | Singapore Prime Rate
Line of Credit Facility [Line Items]
Debt instrument, interest rate increase				1.75%
Singapore Subsidiary | Lending Arrangements Singapore Bank
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity						SGD 200		$ 145
Additional borrowing availability						SGD 44		$ 32
Lending arrangement expiration				1 year
Singapore Subsidiary | Lending Arrangements Singapore Bank | Overdraft Facility | Singapore Prime Rate
Line of Credit Facility [Line Items]
Interest rates on outstanding borrowing			6.00%		6.00%	6.00%	6.00%	6.00%	6.00%
NEW ZEALAND | National Australia Bank Limited and Bank of New Zealand [Member] | New Zealand Receivables Agreement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					NZD 5,000			$ 3,668
LIne of Credit Facility, Notice Period				90 days
Line of Credit Facility, Current Borrowing Capacity								2,256
Additional borrowing availability								$ 2,256
Interest rates on outstanding borrowing			4.00%		4.00%	4.00%	4.00%	4.00%	4.00%
Debt Instrument, Fee Amount					NZD 1			$ 1
Australia [Member] [Member] | National Australia Bank Limited and Bank of New Zealand [Member] | Australian Receivables Facility [Member] [Domain]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			AUD 25,000					19,223
Line of Credit Facility, Current Borrowing Capacity								16,413
Debt instrument, interest rate increase				1.50%
Additional borrowing availability								$ 10,612
Interest rates on outstanding borrowing			3.17%		3.17%	3.17%	3.17%	3.17%	3.17%
Debt Instrument, Fee Amount			AUD 6					$ 5
Belgium Subsidiary | Lending Arrangements Belgium Bank | Overdraft Facility
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								$ 1,143	€ 1,000
LIne of Credit Facility, Notice Period			15 days