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CASH, CASH EQUIVALENTS AND INVESTMENTS (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Bank notes | $ 296,000 | $ 2,372,000 |
Sale of bank notes | 0 | 0 | 0
Long-term investments | 62,443,000 | 19,226,000 |
Cost Method |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 21,638,000 | 9,426,000 |
Cost Method | Cortina |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 3,348,000 | 3,348,000 |
Cost Method | GCT SemiConductor, Inc. |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 811,000 | 3,000,000 |
Cost Method | Xalted Networks |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 279,000 | 1,133,000 |
Cost Method | SBI |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 2,306,000 | 1,945,000 |
Cost Method | iTV Media Inc. |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 14,894,000 |  |
Equity Method |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 9,805,000 | 9,800,000 |
Equity Method | ACELAND |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 2,109,000 | 2,109,000 |
Equity Method | Beijing Bodashutong Technology |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 577,000 | 572,000 |
Equity Method | Shareholder Loan to ACELAND |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 7,119,000 | 7,119,000 |
Available for sale |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 31,000,000 |  |
Available for sale | iTV Media Inc. |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 3,000,000 |  |
Available for sale | AioTV |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | 8,000,000 |  |
Available for sale | UTStarcom Hong Kong Holdings Ltd. |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Long-term investments | $ 20,000,000 |  |
Minimum |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Maturity period of bank notes receivable | 3 months |  |
Maximum |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Maturity period of bank notes receivable | 1 year |  |
China | Minimum |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Maturity period of bank notes receivable | 3 months |  |
China | Maximum |  |  |
CASH, CASH EQUIVALENTS AND INVESTMENTS |  |  |
Maturity period of bank notes receivable | 6 months |  |

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