Deferred share plan. The Company has a deferred share plan for employees and directors whereby a maximum of 2,359,489 common shares may be awarded. At March 31, 2013, the shares that remained in reserve were 2,241,291 of which 1,668,939 were outstanding and 572,352 were unallocated. Restricted share units (“RSU”) The following are the weighted average inputs to the model used in determining fair value for restricted share units granted in the three months ended March 31, 2013. The estimated fair value of the awards is expensed over their vesting period.