Loans - Schedule of Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Pre-Modification Outstanding Recorded Investment	$ 10,023	$ 10,023
Post-Modification Outstanding Recorded Investment	10,068	10,068
Recorded Investment at Period End	7,052	7,326
Total nonaccruing troubled debt restructurings
Financing Receivable, Modifications [Line Items]
Pre-Modification Outstanding Recorded Investment	2,569	2,569
Post-Modification Outstanding Recorded Investment	2,562	2,562
Recorded Investment at Period End	395	534
Total accruing troubled debt restructurings
Financing Receivable, Modifications [Line Items]
Pre-Modification Outstanding Recorded Investment	7,454	7,454
Post-Modification Outstanding Recorded Investment	7,506	7,506
Recorded Investment at Period End	6,657	6,792
Commercial real estate | Total nonaccruing troubled debt restructurings
Financing Receivable, Modifications [Line Items]
Pre-Modification Outstanding Recorded Investment	1,021	1,021
Post-Modification Outstanding Recorded Investment	1,021	1,021
Recorded Investment at Period End	395	460
Commercial real estate | Total accruing troubled debt restructurings
Financing Receivable, Modifications [Line Items]
Pre-Modification Outstanding Recorded Investment	7,118	7,118
Post-Modification Outstanding Recorded Investment	7,170	7,170
Recorded Investment at Period End	6,382	6,509
Commercial real estate construction | Total nonaccruing troubled debt restructurings
Financing Receivable, Modifications [Line Items]
Pre-Modification Outstanding Recorded Investment	1,548	1,548
Post-Modification Outstanding Recorded Investment	1,541	1,541
Recorded Investment at Period End	0	74
Residential mortgage | Total accruing troubled debt restructurings
Financing Receivable, Modifications [Line Items]
Pre-Modification Outstanding Recorded Investment	336	336
Post-Modification Outstanding Recorded Investment	336	336
Recorded Investment at Period End	$ 275	$ 283