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Capital Stock (Details 1) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Apr. 03, 2015	Dec. 31, 2014
Capital Stock Disclosure [Abstract]
Opening Balance Stock Options Outstanding			6,263,112
Begining Balance Weighted Average Exercise Price			$ 3.42
Increase In Number Of Shares Authorized For Issuance Under Stock Option And Incentive Plan					2,500,000
Options, Grants in Period, Gross			863,000
Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 5.51
Options, Forfeitures and Expirations in Period			(246,055)
Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price			$ 4.01
Closing Balance Stock Options Outstanding	5,169,376		5,169,376
Closing Balance Weighted Average Exercise Price	$ 3.87		$ 3.87
Begining Balance Restricted Stock Units Outstanding			306,397
Equity Instruments Other than Options, Grants in Period			254,685
Equity Instruments Other than Options, Vested in Period			(237,188)
Closing Balance Restricted Stock Units Outstanding	323,894		323,894
Begining Balance Grant Date Fair Value Of Restricted Stock Units			$ 4.3
Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			5.56
Closing Balance Grant Date Fair Value Of Restricted Stock Units	$ 5.3		$ 5.3
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Fair Value Assumptions, Expected Volatility Rate	39.35%	57.16%	41.08%	56.83%
Fair Value Assumptions, Risk Free Interest Rate	1.70%	1.80%	1.72%	1.78%
Fair Value Assumptions, Expected Term	5 years 3 months 10 days	5 years 9 months 14 days	5 years 6 months 7 days	5 years 9 months
Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%	0.00%
Options, Exercises in Period, Weighted Average Exercise Price			$ 3.04
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Weighted Average Grant Date Fair Value			$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period			0
Preferred Stock - Shares Authorized	5,000,000		5,000,000			5,000,000
Stock Issued During Period Gross Stock Options Exercised			1,710,681

X

- Definition

Represents the increase in the total number of shares authorized for issuance under the Stock Option and Issuance Plan as approved by the shareholders in their Annual Shareholders Meeting.

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Represents the gross number of shares exercised during the year, and is inclusive of swap exercises (where the shares are exercised for options outstanding purposes but are not issued).

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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.

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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).

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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.

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

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For presentations that combine terminations, 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 or that expired.

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Weighted average price of options that were either forfeited or expired.

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