Loans - Aging Activity (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 12,141	$ 3,620
Current	675,951	682,155
Total loans balance:	688,092	685,775
30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,229	1,837
60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,948	171
90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,964	1,612
Commercial Loan Portfolio | Commercial - Closed-End
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	814	142
Current	26,541	25,704
Total loans balance:	27,355	25,846
Commercial Loan Portfolio | Commercial - Closed-End | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	20
Commercial Loan Portfolio | Commercial - Closed-End | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	664	0
Commercial Loan Portfolio | Commercial - Closed-End | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	150	122
Commercial Loan Portfolio | Commercial - Lines of Credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	646	0
Current	64,003	54,441
Total loans balance:	64,649	54,441
Commercial Loan Portfolio | Commercial - Lines of Credit | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial Loan Portfolio | Commercial - Lines of Credit | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	298	0
Commercial Loan Portfolio | Commercial - Lines of Credit | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	348	0
Commercial Loan Portfolio | Agriculture & AG RE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	45,283	49,121
Total loans balance:	45,283	49,121
Commercial Loan Portfolio | Agriculture & AG RE | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial Loan Portfolio | Agriculture & AG RE | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial Loan Portfolio | Agriculture & AG RE | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial Loan Portfolio | Construction, Land & Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	213	190
Current	25,781	28,581
Total loans balance:	25,994	28,771
Commercial Loan Portfolio | Construction, Land & Development | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	181	133
Commercial Loan Portfolio | Construction, Land & Development | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial Loan Portfolio | Construction, Land & Development | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	32	57
Commercial Loan Portfolio | Commercial Real Estate - Owner-Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	955	151
Current	190,000	195,848
Total loans balance:	190,955	195,999
Commercial Loan Portfolio | Commercial Real Estate - Owner-Occupied | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	71	0
Commercial Loan Portfolio | Commercial Real Estate - Owner-Occupied | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	735	0
Commercial Loan Portfolio | Commercial Real Estate - Owner-Occupied | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	149	151
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,415	588
Current	244,563	242,739
Total loans balance:	247,978	243,327
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	645	588
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial Loan Portfolio | Commercial Real Estate - Non-Owner Occupied | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,770	0
Retail Residential Loan Portfolio
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans balance:	82,809	85,152
Retail Residential Loan Portfolio | Senior Lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans balance:	45,772	46,830
Retail Residential Loan Portfolio | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans balance:	37,037	38,322
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | Senior Lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,326	1,393
Current	40,446	45,437
Total loans balance:	45,772	46,830
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | 30 - 59 Days Past Due | Senior Lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,162	664
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | 60 - 89 Days Past Due | Senior Lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	195	152
Retail Residential Loan Portfolio | Residential 1-4 Family - Senior Lien | 90 Days Past Due or Nonaccrual | Senior Lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,969	577
Retail Residential Loan Portfolio | Residential 1-4 Family - Jr. Lien & Lines of Credit | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	771	1,156
Current	36,266	37,166
Total loans balance:	37,037	38,322
Retail Residential Loan Portfolio | Residential 1-4 Family - Jr. Lien & Lines of Credit | 30 - 59 Days Past Due | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	169	432
Retail Residential Loan Portfolio | Residential 1-4 Family - Jr. Lien & Lines of Credit | 60 - 89 Days Past Due | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	56	19
Retail Residential Loan Portfolio | Residential 1-4 Family - Jr. Lien & Lines of Credit | 90 Days Past Due or Nonaccrual | Jr. Lien & Lines of Credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	546	705
Retail Residential Loan Portfolio | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1	0
Current	3,068	3,118
Total loans balance:	3,069	3,118
Retail Residential Loan Portfolio | Consumer | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1	0
Retail Residential Loan Portfolio | Consumer | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Retail Residential Loan Portfolio | Consumer | 90 Days Past Due or Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 0	$ 0