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OTHER INCOME (EXPENSES), NET (Schedule of Components of Other Income, Net) (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 14, 2014 | Feb. 28, 2015 | Jan. 31, 2015 | Aug. 31, 2014 | Jul. 31, 2014 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2012 | Dec. 31, 2015 | Dec. 31, 2014
ESA Cultural Investment (Hong Kong) limited |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OTHER INCOME (EXPENSES), NET |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans receivable, maximum borrowing amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,600 |  |
Amount drawn |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,000 |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  | 20.00% |  |
Percentage of Loan Gross Carrying Amount of Extended Maturity Date |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |
Loans Receivable Gross Carrying Amount of Extended Maturity Date |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,800 |  |
Proceeds from Collection of Loans Receivable |  |  |  |  |  |  |  |  | $ 6,000 |  |  | $ 800 |  |  |
Proceeds from Interest Received |  |  |  |  |  |  |  |  | 1,100 |  |  |  |  |  |
ESA Cultural Investment (Hong Kong) limited | Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OTHER INCOME (EXPENSES), NET |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount reserved due to collectability risk |  |  |  |  |  |  |  |  | $ 2,800 |  |  |  |  |  |
UiTV |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OTHER INCOME (EXPENSES), NET |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn |  | $ 1,170 | $ 1,170 | $ 1,080 | $ 1,080 |  |  |  |  |  |  |  |  |  |
Loan amount reserved due to collectability risk |  |  |  |  |  |  |  | $ 2,300 |  |  |  |  |  | $ 2,300 |
Loans receivable |  |  |  |  |  |  |  | 2,300 |  |  |  |  |  | 2,300 |
Inphi Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OTHER INCOME (EXPENSES), NET |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares received in exchange of interest in related party | 124,395 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of investment |  |  |  |  |  |  |  |  |  |  |  | $ 2,300 |  |  | $ 2,300
Unrealized gain in other comprehensive income |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500
Equity Securities Sold During Period Shares |  | 124,395 |  |  |  |  |  |  |  |  | 124,395 |  |  |  |
Proceeds from sale of equity |  | $ 2,400 |  |  |  |  |  |  |  |  | $ 2,400 |  |  |  |
Realized gain on other income |  | $ 600 |  |  |  |  |  |  |  |  | $ 600 |  |  |  |
Cash proceeds from sale of assets |  |  |  |  |  |  |  |  |  | $ 700 |  |  |  | 1,000 |
Net carrying value of assets sold |  |  |  |  |  |  |  | 0 |  | $ 0 |  |  |  | $ 0 |
Escrow deposit |  |  |  |  |  | $ 100 |  | $ 300 |  |  |  |  |  |  |
Inphi Corporation | Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OTHER INCOME (EXPENSES), NET |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Escrow deposit |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |  |
Cortina |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OTHER INCOME (EXPENSES), NET |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment Ownership Percentage Disposed Of | 1.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |

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