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INCOME TAXES, Tax Credits and Net Operating Losses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Tax Credit Carryforward [Line Items] |  |  |
Tax provision computed at the federal statutory rate, percentage | 35.00% | 35.00% | 35.00%
Additional Income Tax Information [Abstract] |  |  |
Deferred tax assets, net operating loss carryforwards | $ 10,524 | $ 12,891 |
Federal and State Jurisdiction [Member] |  |  |
Additional Income Tax Information [Abstract] |  |  |
Operating loss carryforwards | 14,400 |  |
Tax credit carryforward | 1,100 |  |
Tax credit carryforward, valuation allowance | (1,000) |  |
Federal and State Jurisdiction [Member] | Capital Loss Carryforward [Member] |  |  |
Additional Income Tax Information [Abstract] |  |  |
Operating loss carryforwards, valuation allowance | (200) |  |
Federal and State Jurisdiction [Member] | Array [Member] |  |  |
Additional Income Tax Information [Abstract] |  |  |
Operating loss carryforwards | 3,700 |  |
Federal and State Jurisdiction [Member] | Connectivity Solutions [Member] |  |  |
Additional Income Tax Information [Abstract] |  |  |
Operating loss carryforwards | 9,000 |  |
Deferred tax assets, net operating loss carryforwards | 5,300 |  |
Foreign Jurisdictions [Member] |  |  |
Additional Income Tax Information [Abstract] |  |  |
Operating loss carryforwards | 32,200 |  |
Tax credit carryforward | 300 |  |
Operating loss carryforwards, valuation allowance | (7,300) |  |
Deferred tax assets, net operating loss carryforwards | 7,600 |  |
Foreign Jurisdictions [Member] | Capital Loss Carryforward [Member] |  |  |
Additional Income Tax Information [Abstract] |  |  |
Tax credit carryforward | $ 200 |  |
Macao [Member] |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Tax provision computed at the federal statutory rate, percentage | 12.00% |  |
People's Republic of China (PRC) [Member] |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Tax provision computed at the federal statutory rate, percentage | 25.00% |  |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96869850&loc=d3e28680-109314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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