Quarterly report pursuant to Section 13 or 15(d)

Stock Plans (Details Textual)

v3.5.0.2
Stock Plans (Details Textual)
$ in Millions
6 Months Ended
Jun. 30, 2016
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Weighted-average period for recognizing non-vested stock option 1 year 4 months 24 days
Employee Stock Option [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total $ 1.1