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FAIR VALUE MEASUREMENTS (Tables) | 12 Months Ended
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Dec. 31, 2018
Fair Value Disclosures [Abstract] |
Schedule of Information about Inputs Into the Fair Value Measurements of the Assets and Liabilities that the Group Makes on a Recurring Basis | At December 31, 2018 and 2017 information about inputs into the fair value measurements of the assets and liabilities that the Group makes on a recurring basis were as follows:
|  | Fair Value Measurements at Reporting Date Using |
|  | Total Fair Value and Carrying Value on Balance Sheet |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
As of December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short term investments, available for sale |  |  | 47,208 |  |  |  | 47,208 |  |  |  | - |  |  |  | - |
|  | Fair Value Measurements at Reporting Date Using |
|  | Total Fair Value and Carrying Value on Balance Sheet |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
As of December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short term investments, available for sale |  |  | 128,042 |  |  |  | 128,042 |  |  |  | - |  |  |  | - |
Schedule of Quantitative Information about Level 3 Fair Value Measurements of Property and Equipment, Other Non-current Assets and Intangible Assets | The following table presents the quantitative information about the Group’s Level 3 fair value measurements of intangible assets on a nonrecurring basis in 2017 and 2018, which utilize significant unobservable internally-developed inputs:
|  | Fair value |  |  | Valuation techniques |  | Unobservable inputs |  | Range
Intangible assets in 2017 |  |  | 91,249 |  |  | Relief-from-royalty method |  | Royalty rate Discount rate Terminal growth rate |  | 1%-6% 14.8%-17% 3%
Intangible assets in 2018 |  |  | 141,758 |  |  | Relief-from-royalty method |  | Royalty rate Discount rate Terminal growth rate |  | 1%-6% 14.8%-17% 3%
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation | The following table presents the quantitative information about the Group’s Level 3 fair value measurements of contingent consideration payable on a recurring basis in 2017 and 2018, which utilize significant unobservable internally-developed inputs:
|  | Fair value |  |  | Valuation techniques |  | Unobservable inputs |  | Rate
Contingent consideration payable in 2017 |  |  | 6,766 |  |  | Discounted cash flow method |  | Discount rate |  | 14.8%
Contingent consideration payable in 2018 |  |  | 1,322 |  |  | Discounted cash flow method |  | Discount rate |  | 14.8%

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique used to measure similar asset in prior period by class of asset or liability on non-recurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19279-110258 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 + Details
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