Description of the business and recent developments: (Details 3)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Diluted weighted average shares
Weighted average common shares-basic	45,158,250	46,409,735
Weighted average common shares-diluted	45,158,250	46,907,360
Stock options
Basic and diluted net income (loss) per common share
Options exercised during the period (in shares)	6,459	9,757
Diluted weighted average shares
Dilutive effect of awards (in shares)		77,738
Restricted stock
Diluted weighted average shares
Dilutive effect of awards (in shares)		419,887

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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