Loans Receivable and Allowance for Loan Losses (Details 5) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Loans Receivable Payment Age Analysis
30-59 Days	$ 1,361	$ 1,126
60-89 Days	573	715
90+ Days	2,526	2,696
Total Past Due	4,460	4,537
Current	534,741	511,811
Total Loans	539,201	516,348
90+ And Accruing
Commercial Real Estate [Member]
Loans Receivable Payment Age Analysis
30-59 Days	655	376
60-89 Days	32	547
90+ Days	625	1,276
Total Past Due	1,312	2,199
Current	206,165	210,651
Total Loans	207,477	212,850
90+ And Accruing
Consumer [Member]
Loans Receivable Payment Age Analysis
30-59 Days	4	2
60-89 Days	5	10
90+ Days	2	9
Total Past Due	11	21
Current	3,437	3,546
Total Loans	3,448	3,567
90+ And Accruing
Government [Member]
Loans Receivable Payment Age Analysis
30-59 Days
60-89 Days
90+ Days
Total Past Due
Current	9,737	10,037
Total Loans	9,737	10,037
90+ And Accruing
Commercial and Industrial [Member]
Loans Receivable Payment Age Analysis
30-59 Days	350	297
60-89 Days	67	57
90+ Days	555	610
Total Past Due	972	964
Current	122,757	114,965
Total Loans	123,729	115,929
90+ And Accruing
Agricultural [Member]
Loans Receivable Payment Age Analysis
30-59 Days	7
60-89 Days
90+ Days	124	152
Total Past Due	131	152
Current	5,402	4,102
Total Loans	5,533	4,254
90+ And Accruing
Commercial Construction and Development [Member]
Loans Receivable Payment Age Analysis
30-59 Days
60-89 Days
90+ Days	16
Total Past Due	16
Current	20,962	11,434
Total Loans	20,978	11,434
90+ And Accruing
Residential Prime [Member]
Loans Receivable Payment Age Analysis
30-59 Days	13	369
60-89 Days	391	87
90+ Days	962	335
Total Past Due	1,366	791
Current	127,920	123,189
Total Loans	129,286	123,980
90+ And Accruing
Residential HELOC [Member]
Loans Receivable Payment Age Analysis
30-59 Days	218	45
60-89 Days	41	14
90+ Days	124	314
Total Past Due	383	373
Current	23,187	20,304
Total Loans	23,570	20,677
90+ And Accruing
Residential - construction and development [Member]
Loans Receivable Payment Age Analysis
30-59 Days	114	37
60-89 Days	37
90+ Days	118
Total Past Due	269	37
Current	15,174	13,583
Total Loans	15,443	13,620
90+ And Accruing