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Unrecognized cost of unvested share-based compensation awards.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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SHARE-BASED COMPENSATION (Details 2) (USD $)	12 Months Ended			1 Months Ended
SHARE-BASED COMPENSATION (Details 2) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	May 31, 2007	Apr. 30, 1997	Apr. 30, 2011	Mar. 31, 2011	Sep. 30, 2004	Apr. 30, 2013
Changes during the period
Granted (in shares)	0	0
Stock Option 2013 Plan
Additional disclosures
Aggregate intrinsic value of options exercised	31,000	22,000
Stock Option
SHARE-BASED COMPENSATION
Contractual terms	10 years
Weighted-average assumptions used in estimating the fair value of the stock options granted to employees
Expected volatility (as a percent)			77.20%
Risk free interest rate (as a percent)			1.80%
Expected dividends (as a percent)			1.00%
Expected life			8 years
Weighted average fair value (in dollars per share)			$ 9.65
Shares
Outstanding at the beginning of the period (in shares)	302,648
Changes during the period
Exercised (in shares)	(5,187)		0
Expired (in shares)	(9,485)
Forfeited (in shares)	(1,569)
Outstanding at the end of the period (in shares)	286,407	302,648
Vested and expected to vest at the end of the period (in shares)	286,407
Exercisable at the end of the period (in shares)	146,908
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	51.79
Changes during the period:
Exercised (in dollars per share)	14.31
Expired (in dollars per share)	546.31
Forfeited (in dollars per share)	556.65
Outstanding at the end of the period (in dollars per share)	33.32	51.79
Vested and expected to vest at the end of the period (in dollars per share)	33.32
Exercisable at the end of the period (in dollars per share)	51.35
Weighted Average Remaining Contractual Term
Outstanding at the end of the period	7 years 1 month 6 days
Vested and expected to vest at the end of the period	7 years 1 month 6 days
Exercisable at the end of the period	6 years 10 months 24 days
Aggregate Intrinsic Value
Outstanding at the end of the period (in dollars)	1,956,000
Vested and expected to vest at the end of the period (in dollars)	1,956,000
Exercisable at the end of the period (in dollars)	957,000
Additional disclosures
Total compensation cost not yet recognized (in dollars)	1,000,000
Weighted-average period for recognition of compensation cost not yet recognized	2 years 3 months 18 days
Total fair value of shares vested (in dollars)	700,000	700,000	$ 14,000
Stock Option \| Stock Option 1997 Plan
SHARE-BASED COMPENSATION
Shares authorized for grants					2,000,000
Stock Option \| Stock Compensation 2004 Plan
SHARE-BASED COMPENSATION
Shares authorized for grants						4,944,831	1,402,589	1,500,000
Additional shares authorized for grants	1,993,385	2,185,454	1,604,198	1,000,000
Stock Option \| Stock Option 2013 Plan
SHARE-BASED COMPENSATION
Shares authorized for grants									2,200,000
Stock Option \| Minimum
SHARE-BASED COMPENSATION
Vesting period	3 years
Stock Option \| Maximum
SHARE-BASED COMPENSATION
Vesting period	5 years