Quarterly report pursuant to Section 13 or 15(d)

Stock Award Plans (Details)

v3.4.0.3
Stock Award Plans (Details)
3 Months Ended
Mar. 31, 2016
plan
Stock Based Compensation  
Number of stock option plans 3
Employee Stock Purchase Plan  
Stock Based Compensation  
Purchase price of common shares as a percentage of the fair market value on the first day of the offering period 85.00%
Purchase price of common shares as a percentage of the fair market value on the purchase date 85.00%