DISCONTINUED OPERATIONS (Details) - USD ($) $ in Thousands		12 Months Ended
	Nov. 09, 2014	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets of Disposal Group, Including Discontinued Operation, Current			$ 0	$ 0	$ 0	$ 38
Business reorganization			712			$ 1,580	$ 5,828
Effective income tax rate reconciliation, at federal statutory income tax rate		0.00%		35.00%	0.00%	35.00%	35.00%
eDiscovery [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of business	$ 23,000
Revenue			0			$ 30	$ (1)
Gross margin			0			130	(30)
Business reorganization			21			(111)	501
Operating income (loss), excluding gain (loss) from sale of business			(21)			187	(731)
Other non-operating income (loss), including interest			0			0	(8)
Gain (loss) from sale of discontinued operations			0			0	137	$ 11,333
Income (loss) from discontinued operations before income taxes			(21)			187	(602)
Provision (benefit) for income taxes			0			25	(37)
Income (loss) from discontinued operations			(21)			162	(565)
Sweden [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue			0			0	30
Gross margin			0			0	30
Business reorganization			0			0	(29)
Operating income (loss), excluding gain (loss) from sale of business			0			(19)	14
Other non-operating income (loss), including interest			0			0	0
Gain (loss) from sale of discontinued operations			0			0	1,273
Income (loss) from discontinued operations before income taxes			0			(19)	1,287
Provision (benefit) for income taxes			0			0	0
Income (loss) from discontinued operations			0			(19)	1,287
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets of Disposal Group, Including Discontinued Operation, Current			0	$ 0	$ 0	38
Liabilities of Disposal Group, Including Discontinued Operation			56	56	56	291
Revenue			0			30	29
Gross margin			0			130	0
Business reorganization			21			(111)	472
Operating income (loss), excluding gain (loss) from sale of business			(21)			168	(717)
Other non-operating income (loss), including interest			0			0	(8)
Gain (loss) from sale of discontinued operations			0			0	1,410
Income (loss) from discontinued operations before income taxes			(21)			168	685
Provision (benefit) for income taxes			0			25	(37)
Income (loss) from discontinued operations			(21)			143	$ 722
Discontinued Operations [Member] | eDiscovery [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Other Assets			0	0	0	38
Liabilities of Disposal Group, Including Discontinued Operation			56	56	56	291
Discontinued Operations [Member] | Sweden [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Other Assets			0	0	0	0
Liabilities of Disposal Group, Including Discontinued Operation			$ 0	$ 0	$ 0	$ 0