Annual report pursuant to Section 13 and 15(d)

Stock Based Compensation (Details 1)

v3.6.0.2
Stock Based Compensation (Details 1) - Employee Stock Option [Member] - $ / shares
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares - Nonvested (in shares) 19,725 12,775
Shares - Granted (in shares) 8,740 7,250
Shares - Vested (in shares) 0 (300)
Shares - Forfeited (in shares) 0 0
Shares - Nonvested (in shares) 28,465 19,725
Weighted Average Exercise Price - Nonvested (in dollars per share) $ 25.15 $ 23.63
Weighted Average Exercise Price - Granted (in dollars per share) 30.10 27.50
Weighted Average Exercise Price - Vested (in dollars per share) 0 16.75
Weighted Average Exercise Price - Forfeited (in dollars per share) 0 0
Weighted Average Exercise Price - Nonvested (in dollars per share) $ 26.67 $ 25.15