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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) (USD $)

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Summary Of Significant Accounting Policies [Line Items]

Trading gains

$ 133,000us-gaap_MarketableSecuritiesGainLoss

$ 2,000us-gaap_MarketableSecuritiesGainLoss

Allowance for doubtful accounts receivable

2,391,000us-gaap_AllowanceForDoubtfulAccountsReceivable

1,945,000us-gaap_AllowanceForDoubtfulAccountsReceivable

Intangible asset impairment loss

43,000us-gaap_ImpairmentOfIntangibleAssetsFinitelived

Goodwill

4,041,000us-gaap_Goodwill

5,433,000us-gaap_Goodwill

8,043,000us-gaap_Goodwill

^[1]

Goodwill impairment loss

879,000us-gaap_GoodwillImpairmentLoss

^[2]

3,093,000us-gaap_GoodwillImpairmentLoss

^[2]

672,000us-gaap_GoodwillImpairmentLoss

Severance expenses

1,460,000us-gaap_SeveranceCosts1

882,000us-gaap_SeveranceCosts1

1,204,000us-gaap_SeveranceCosts1

Advertising expenses

6,700,000us-gaap_AdvertisingExpense

7,600,000us-gaap_AdvertisingExpense

6,600,000us-gaap_AdvertisingExpense

Deferred expenses amortization period

20 months

Minimum [Member]

Summary Of Significant Accounting Policies [Line Items]

Ownership percentage, equity method

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Maximum [Member]

Summary Of Significant Accounting Policies [Line Items]

Ownership percentage, equity method

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Certain Reporting Units [Member]

Summary Of Significant Accounting Policies [Line Items]

Goodwill

1,500,000us-gaap_Goodwill
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4,800,000us-gaap_Goodwill
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Goodwill impairment loss

900,000us-gaap_GoodwillImpairmentLoss
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3,100,000us-gaap_GoodwillImpairmentLoss
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Goodwill, fair value

700,000us-gaap_GoodwillFairValueDisclosure
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Certain Reporting Unit One [Member]

Summary Of Significant Accounting Policies [Line Items]

Goodwill

0us-gaap_Goodwill
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2,600,000us-gaap_Goodwill
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Goodwill impairment loss

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Goodwill, fair value

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1,700,000us-gaap_GoodwillFairValueDisclosure
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Certain Reporting Unit Two [Member]

Summary Of Significant Accounting Policies [Line Items]

Goodwill

0us-gaap_Goodwill
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500,000us-gaap_Goodwill
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Goodwill, fair value

0us-gaap_GoodwillFairValueDisclosure
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0us-gaap_GoodwillFairValueDisclosure
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Certain Reporting Unit Three [Member]

Summary Of Significant Accounting Policies [Line Items]

Goodwill

0us-gaap_Goodwill
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1,700,000us-gaap_Goodwill
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Goodwill, fair value

$ 0us-gaap_GoodwillFairValueDisclosure
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$ 0us-gaap_GoodwillFairValueDisclosure
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[1]	The accumulated amount of impairment loss as of January 1, 2013, December 31, 2013 and December 31, 2014 was US$ 2,452,000, US$ 5,545,000 and US$ 6,424,000, respectively.
[2]	During 2014, 2013 and 2012, the Company recorded an amount of US$ 879,000 US$ 3,093,000 and US$ 672,000, respectively, as impairment with respect to goodwill.

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