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SHARE BASED COMPENSATION (Schedule of Restricted stock ) (Details) - Restricted stock [Member] | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 22, 2018 $ / shares | Dec. 31, 2018 ¥ / shares shares | Dec. 31, 2017 ¥ / shares shares | Dec. 31, 2016 ¥ / shares shares
Shares |  |  |  |
Outstanding at beginning of year (in shares) |  | 196,637 | 415,521 |
Granted (in shares) |  | 493,059 | 0 |
Issued (in shares) |  | (409,350) | (216,259) |
Forfeited or expired (in shares) |  | (7,027) | (2,625) |
Outstanding at end of year (in shares) |  | 273,319 | 196,637 | 415,521
Shares vested but not issued at end of year (in shares) |  | 34,962 | 49,500 |
Grant-date fair value |  |  |  |
Outstanding at beginning of year | ¥ / shares |  | ¥ 20.50 | ¥ 22.28 |
Granted | (per share) | $ 2.70 | 18.56 | 0 |
Issued | ¥ / shares |  | 19.40 | 21.25 |
Forfeited or expired | ¥ / shares |  | 21.51 | 20.36 |
Outstanding at end of year | ¥ / shares |  | 19.31 | 20.50 | ¥ 22.28
Shares vested but not issued at end of year | ¥ / shares |  | ¥ 22.51 | ¥ 21.44 |
Weighted Average Remaining Contractual Term |  |  |  |
Outstanding at beginning of year |  | 3 years 4 days | 1 year 3 months 14 days | 1 year 10 months 20 days
Granted |  | 3 years 10 months 24 days | 0 years |
Forfeited or expired |  | 2 years 1 month 10 days | 1 year 5 months 19 days |
Shares vested but not issued at the end of the period |  | 0 years | 0 years |
Outstanding at end of year |  | 3 years 4 days | 1 year 3 months 14 days | 1 year 10 months 20 days

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- Definition Weighted average remaining contractual term for equity-based awards excluding options which are forfeited during the period, in ''''PnYnMnDTnHnMnS'''' format, for example, ''''P1Y5M13D'''' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options that are vested and expected to vest as of the balance sheet date. + References No definition available. + Details
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- Definition The weighted average fair value of awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan), which are vested or expected to vest as of the balance sheet date. + References No definition available. + Details
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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(3) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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