Loans, Non-Accrual And Past Due Loans (Details) (USD $)	Mar. 31, 2013 Loan	Dec. 31, 2012	Mar. 31, 2012
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	$ 3,966,000	$ 6,412,000
60 to 89 Days Past Due	3,536,000	3,679,000
90 Days and Over	5,983,000	5,548,000
Total Past Due	13,485,000	15,639,000
Current	325,032,000	317,655,000
Total Loans Receivable	338,517,000	333,294,000
Nonaccrual loans, Segregated by class of loans [Abstract]
Nonaccrual status loans	5,983,000	5,548,000
Ninety days past due and still accruing interest	0	0
Recorded investment in new TDRs	0		0
Subsequent default number of contracts	4
Residential Mortgage Loans [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	1,646,000	2,698,000
60 to 89 Days Past Due	1,153,000	1,161,000
90 Days and Over	1,605,000	2,046,000
Total Past Due	4,404,000	5,905,000
Current	173,785,000	170,705,000
Total Loans Receivable	178,189,000	176,610,000
Nonaccrual loans, Segregated by class of loans [Abstract]
Nonaccrual status loans	1,605,000	2,046,000
1-4 Family First Lien Residential Mortgage [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	1,646,000	2,698,000
60 to 89 Days Past Due	1,153,000	1,161,000
90 Days and Over	1,605,000	2,046,000
Total Past Due	4,404,000	5,905,000
Current	173,007,000	168,050,000
Total Loans Receivable	177,411,000	173,955,000
Nonaccrual loans, Segregated by class of loans [Abstract]
Nonaccrual status loans	1,605,000	2,046,000
Construction [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	0	0
60 to 89 Days Past Due	0	0
90 Days and Over	0	0
Total Past Due	0	0
Current	778,000	2,655,000
Total Loans Receivable	778,000	2,655,000
Commercial Loans [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	1,952,000	3,481,000
60 to 89 Days Past Due	2,183,000	2,071,000
90 Days and Over	3,996,000	2,726,000
Total Past Due	8,131,000	8,278,000
Current	127,002,000	122,864,000
Total Loans Receivable	135,133,000	131,142,000
Nonaccrual loans, Segregated by class of loans [Abstract]
Nonaccrual status loans	3,996,000	2,726,000
Payment default within the twelve month period	110,000
Real Estate [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	525,000	1,706,000
60 to 89 Days Past Due	552,000	1,833,000
90 Days and Over	3,140,000	1,794,000
Total Past Due	4,217,000	5,333,000
Current	80,091,000	76,996,000
Total Loans Receivable	84,308,000	82,329,000
Nonaccrual loans, Segregated by class of loans [Abstract]
Nonaccrual status loans	3,140,000	1,794,000
Subsequent default number of contracts	2
Payment default within the twelve month period	746,000
Lines of Credit [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	504,000	496,000
60 to 89 Days Past Due	271,000	153,000
90 Days and Over	263,000	334,000
Total Past Due	1,038,000	983,000
Current	12,423,000	12,765,000
Total Loans Receivable	13,461,000	13,748,000
Nonaccrual loans, Segregated by class of loans [Abstract]
Nonaccrual status loans	263,000	334,000
Subsequent default number of contracts	1
Payment default within the twelve month period	87,000
Other Commercial and Industrial [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	923,000	1,279,000
60 to 89 Days Past Due	1,360,000	85,000
90 Days and Over	593,000	598,000
Total Past Due	2,876,000	1,962,000
Current	29,950,000	29,515,000
Total Loans Receivable	32,826,000	31,477,000
Nonaccrual loans, Segregated by class of loans [Abstract]
Nonaccrual status loans	593,000	598,000
Municipal [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	0	0
60 to 89 Days Past Due	0	0
90 Days and Over	0	0
Total Past Due	0	0
Current	4,538,000	3,588,000
Total Loans Receivable	4,538,000	3,588,000
Consumer Loans [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	368,000	233,000
60 to 89 Days Past Due	200,000	447,000
90 Days and Over	382,000	776,000
Total Past Due	950,000	1,456,000
Current	24,245,000	24,086,000
Total Loans Receivable	25,195,000	25,542,000
Nonaccrual loans, Segregated by class of loans [Abstract]
Nonaccrual status loans	382,000	776,000
Home Equity and Junior Liens [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	347,000	207,000
60 to 89 Days Past Due	182,000	405,000
90 Days and Over	337,000	730,000
Total Past Due	866,000	1,342,000
Current	20,686,000	20,731,000
Total Loans Receivable	21,552,000	22,073,000
Nonaccrual loans, Segregated by class of loans [Abstract]
Nonaccrual status loans	337,000	730,000
Other Consumer [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	21,000	26,000
60 to 89 Days Past Due	18,000	42,000
90 Days and Over	45,000	46,000
Total Past Due	84,000	114,000
Current	3,559,000	3,355,000
Total Loans Receivable	3,643,000	3,469,000
Nonaccrual loans, Segregated by class of loans [Abstract]
Nonaccrual status loans	$ 45,000	$ 46,000