Loans and Allowance for Loan Losses (Details 5) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Commercial & Industrial [Member]    
Summary of Impaired loan activity    
With no related allowance recorded, Recorded Investment $ 126
With no related allowance recorded, Unpaid Principal Balance 1,214
With no related allowance recorded, Related Allowance
With no related allowance recorded, Average Recorded Investment 1,388
With no related allowance recorded, Interest Income Recognized
With a specific allowance recorded, Recorded Investment 50
With a specific allowance recorded, Unpaid Principal Balance 50
With a specific allowance recorded, Related Allowance 50
With a specific allowance recorded, Average Recorded Investment 50
With a specific allowance recorded, Interest Income Recognized 3
Total Recorded Investment 50 126
Total Unpaid Principal Balance 50 1,214
Total Related Allowance 50
Total Average Recorded Investment 50 1,388
Total Interest Income Recognized 3
Commercial RE & Construction [Member]    
Summary of Impaired loan activity    
With no related allowance recorded, Recorded Investment 637 1,110
With no related allowance recorded, Unpaid Principal Balance 637 1,110
With no related allowance recorded, Related Allowance
With no related allowance recorded, Average Recorded Investment 655 1,206
With no related allowance recorded, Interest Income Recognized 24 27
With a specific allowance recorded, Recorded Investment 941 4,643
With a specific allowance recorded, Unpaid Principal Balance 941 4,893
With a specific allowance recorded, Related Allowance 119 1,759
With a specific allowance recorded, Average Recorded Investment 1,010 5,006
With a specific allowance recorded, Interest Income Recognized 45 90
Total Recorded Investment 1,578 5,753
Total Unpaid Principal Balance 1,578 6,003
Total Related Allowance 119 1,759
Total Average Recorded Investment 1,665 6,212
Total Interest Income Recognized 69 117
Agricultural & Farmland [Member]    
Summary of Impaired loan activity    
With no related allowance recorded, Recorded Investment
With no related allowance recorded, Unpaid Principal Balance
With no related allowance recorded, Related Allowance
With no related allowance recorded, Average Recorded Investment
With no related allowance recorded, Interest Income Recognized
With a specific allowance recorded, Recorded Investment
With a specific allowance recorded, Unpaid Principal Balance
With a specific allowance recorded, Related Allowance
With a specific allowance recorded, Average Recorded Investment
With a specific allowance recorded, Interest Income Recognized
Total Recorded Investment
Total Unpaid Principal Balance
Total Related Allowance
Total Average Recorded Investment
Total Interest Income Recognized
Residential Real Estate [Member]    
Summary of Impaired loan activity    
With no related allowance recorded, Recorded Investment 1,248 657
With no related allowance recorded, Unpaid Principal Balance 1,290 657
With no related allowance recorded, Related Allowance
With no related allowance recorded, Average Recorded Investment 1,470 862
With no related allowance recorded, Interest Income Recognized 70 52
With a specific allowance recorded, Recorded Investment 671 1,013
With a specific allowance recorded, Unpaid Principal Balance 672 1,013
With a specific allowance recorded, Related Allowance 124 167
With a specific allowance recorded, Average Recorded Investment 751 1,084
With a specific allowance recorded, Interest Income Recognized 30 45
Total Recorded Investment 1,919 1,670
Total Unpaid Principal Balance 1,962 1,670
Total Related Allowance 124 167
Total Average Recorded Investment 2,221 1,946
Total Interest Income Recognized 100 97
Consumer & Other [Member]    
Summary of Impaired loan activity    
With no related allowance recorded, Recorded Investment 129 90
With no related allowance recorded, Unpaid Principal Balance 129 90
With no related allowance recorded, Related Allowance
With no related allowance recorded, Average Recorded Investment 151 107
With no related allowance recorded, Interest Income Recognized 11 9
With a specific allowance recorded, Recorded Investment 119 374
With a specific allowance recorded, Unpaid Principal Balance 118 374
With a specific allowance recorded, Related Allowance 7 37
With a specific allowance recorded, Average Recorded Investment 123 385
With a specific allowance recorded, Interest Income Recognized 7 22
Total Recorded Investment 248 464
Total Unpaid Principal Balance 247 464
Total Related Allowance 7 37
Total Average Recorded Investment 274 492
Total Interest Income Recognized 18 31
All Impaired Loans less than $100,000 [Member]    
Summary of Impaired loan activity    
With no related allowance recorded, Recorded Investment 452 131
With no related allowance recorded, Unpaid Principal Balance 452 131
With no related allowance recorded, Related Allowance
With no related allowance recorded, Average Recorded Investment 452 131
With no related allowance recorded, Interest Income Recognized
Total Recorded Investment 452 131
Total Unpaid Principal Balance 452 131
Total Related Allowance
Total Average Recorded Investment 452 131
Total Interest Income Recognized