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CONCENTRATION OF RISK, Revenues and Accounts Receivable (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Concentration Risk [Line Items]
Revenue	$ 29,703,000	$ 31,223,000
Accounts receivable	20,866,000		$ 24,729,000
Total Revenue [Member] \| Government Contracts Concentration Risk [Member]
Concentration Risk [Line Items]
Revenue	$ 57,000	$ 11,000
Concentration risk, percentage (less than 1% for contracts with U.S. government agencies)	1.00%	1.00%
Total Revenue [Member] \| Customer Concentration Risk [Member] \| Major Customer A [Member]
Concentration Risk [Line Items]
Concentration risk, percentage (less than 1% for contracts with U.S. government agencies)	50.00%	26.00%
Total Revenue [Member] \| Customer Concentration Risk [Member] \| Major Customer B [Member]
Concentration Risk [Line Items]
Concentration risk, percentage (less than 1% for contracts with U.S. government agencies)	36.00%	41.00%
Total Revenue [Member] \| Customer Concentration Risk [Member] \| Major Customer C [Member]
Concentration Risk [Line Items]
Concentration risk, percentage (less than 1% for contracts with U.S. government agencies)	6.00%	1.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Major Customer A [Member]
Concentration Risk [Line Items]
Accounts receivable	$ 12,206,000
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Major Customer B [Member]
Concentration Risk [Line Items]
Accounts receivable	5,816,000
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Major Customer C [Member]
Concentration Risk [Line Items]
Accounts receivable	$ 1,651,000
Excluding North America [Member] \| Total Revenue [Member] \| Geographic Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk, percentage (less than 1% for contracts with U.S. government agencies)	99.00%	99.00%