Allowance for Loan Losses (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Unpaid Principal Balance
TOTAL	$ 11,079		$ 11,079		$ 10,018
Recorded Investment
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,925		1,925		2,352
Fair value	10,644		10,644		9,725
Allowance For Loan Losses Allocated
TOTAL	857		857		1,159
Average Recorded Investment
Impaired Financing Receivable, Average Recorded Investment	10,125	$ 13,306	9,530	$ 14,016	13,157
Interest Income Recognized
Impaired Financing Receivable, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
TOTAL	0	0	0	0	0
Commercial & Industrial
Unpaid Principal Balance
With no related allowance recorded:	1,202		1,202		1,516
With an allowance recorded:	966		966		998
Recorded Investment
With no related allowance recorded:	1,202		1,202		1,223
Impaired Financing Receivable, with Related Allowance, Recorded Investment	966		966		998
Fair value	740		740		786
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	226		226		212
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	719	3,290	931	1,939	1,796
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	980	1,714	890	4,080	3,463
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Farmland
Unpaid Principal Balance
With no related allowance recorded:	1,560		1,560		0
With an allowance recorded:	0		0		0
Recorded Investment
With no related allowance recorded:	1,561		1,561		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		0
Fair value	0		0		0
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,513	0	757	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	0	0	0	0
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Non Farm, Non Residential
Unpaid Principal Balance
With no related allowance recorded:	3,415		3,415		3,202
With an allowance recorded:	701		701		1,415
Recorded Investment
With no related allowance recorded:	3,043		3,043		3,202
Impaired Financing Receivable, with Related Allowance, Recorded Investment	701		701		1,415
Fair value	508		508		674
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	193		193		741
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	3,064	3,599	3,121	1,800	2,080
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	915	1,929	1,105	4,248	3,682
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Agriculture
Unpaid Principal Balance
With no related allowance recorded:	635		635		0
With an allowance recorded:	635		635		0
Recorded Investment
With no related allowance recorded:	635		635		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	571		571		0
Fair value	242		242		0
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	329		329		0
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	635	0	318	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	286	0	143	0	0
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
All Other Commercial
Unpaid Principal Balance
With no related allowance recorded:	1,395		1,395		1,760
With an allowance recorded:	0		0		225
Recorded Investment
With no related allowance recorded:	1,395		1,395		1,760
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		225
Fair value	0		0		225
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,410	1,785	1,504	1,029	1,175
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	393	56	548	483
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
First Liens
Unpaid Principal Balance
With no related allowance recorded:	26		26		29
With an allowance recorded:	544		544		873
Recorded Investment
With no related allowance recorded:	26		26		29
Impaired Financing Receivable, with Related Allowance, Recorded Investment	544		544		873
Fair value	435		435		667
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	109		109		206
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	27	31	28	15	18
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	576	565	677	357	460
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Home Equity
Unpaid Principal Balance
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Recorded Investment
With no related allowance recorded:	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		0
Fair value	0		0		0
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	0	0	0	0
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Junior Liens
Unpaid Principal Balance
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Recorded Investment
With no related allowance recorded:	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		0
Fair value	0		0		0
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	0	0	0	0
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Multifamily
Unpaid Principal Balance
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Recorded Investment
With no related allowance recorded:	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		0
Fair value	0		0		0
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	0	0	0	0
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
All Other Residential
Unpaid Principal Balance
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Recorded Investment
With no related allowance recorded:	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		0
Fair value	0		0		0
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	0	0	0	0
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Motor Vehicle
Unpaid Principal Balance
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Recorded Investment
With no related allowance recorded:	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		0
Fair value	0		0		0
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	0	0	0	0
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
All Other Consumer
Unpaid Principal Balance
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Recorded Investment
With no related allowance recorded:	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		0
Fair value	0		0		0
Allowance For Loan Losses Allocated
With no related allowance recorded:	0		0		0
With an allowance recorded:	0		0		0
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	0	0	0	0
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0	0
Cash Basis Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	$ 0	$ 0	$ 0	$ 0	$ 0