Loans Receivable (Financing Receivables) and Allowance for Loan Losses (Details 8) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
With a related allowance:
Recorded Investment	$ 289,000		$ 327,000
Commercial
With no related allowance:
Recorded Investment	6,916,000		2,535,000
Unpaid Principal Balance	6,916,000		2,535,000
Average Recorded Investment	3,880,000	4,330,000
Interest Income Recognized	77,000	24,000
Charge-Offs	129,000	187,000
With a related allowance:
Recorded Investment	7,172,000		7,150,000
Unpaid Principal Balance	7,281,000		7,283,000
Related Allowance	109,000		133,000
Average Recorded Investment	7,161,000	156,000
Interest Income Recognized	97,000	2,000
Total:
Recorded Investment	14,088,000		9,685,000
Unpaid Principal Balance	14,197,000		9,818,000
Related Allowance	109,000		133,000
Average Recorded Investment	11,041,000	4,486,000
Interest Income Recognized	174,000	26,000
Charge-offs	129,000	187,000
Commercial Mortgage
With no related allowance:
Recorded Investment	26,412,000		32,561,000
Unpaid Principal Balance	26,412,000		32,561,000
Average Recorded Investment	28,611,000	22,911,000
Interest Income Recognized	192,000	260,000
Charge-Offs	1,087,000	320,000
With a related allowance:
Recorded Investment	1,713,000		1,734,000
Unpaid Principal Balance	1,746,000		1,757,000
Related Allowance	33,000		23,000
Average Recorded Investment	1,828,000	4,705,000
Interest Income Recognized	26,000	68,000
Total:
Recorded Investment	28,125,000		34,295,000
Unpaid Principal Balance	28,158,000		34,318,000
Related Allowance	33,000		23,000
Average Recorded Investment	30,439,000	27,616,000
Interest Income Recognized	218,000	328,000
Charge-offs	1,087,000	320,000
Commercial construction
With no related allowance:
Recorded Investment	9,648,000		11,692,000
Unpaid Principal Balance	9,648,000		11,692,000
Average Recorded Investment	10,803,000	13,571,000
Interest Income Recognized	102,000	162,000
Charge-Offs	134,000	147,000
Total:
Recorded Investment	9,648,000		11,692,000
Unpaid Principal Balance	9,648,000		11,692,000
Average Recorded Investment	10,803,000	13,571,000
Interest Income Recognized	102,000	162,000
Charge-offs	134,000	147,000
Consumer construction
With no related allowance:
Recorded Investment	16,000		645,000
Unpaid Principal Balance	16,000		645,000
Average Recorded Investment	494,000	654,000
Interest Income Recognized	1,000	16,000
Charge-Offs	148,000	7,000
Total:
Recorded Investment	16,000		645,000
Unpaid Principal Balance	16,000		645,000
Average Recorded Investment	494,000	654,000
Interest Income Recognized	1,000	16,000
Charge-offs	148,000	7,000
Residential mortgage
With no related allowance:
Recorded Investment	9,357,000		11,776,000
Unpaid Principal Balance	9,357,000		11,776,000
Average Recorded Investment	10,913,000	9,490,000
Interest Income Recognized	160,000	186,000
Charge-Offs	1,559,000	346,000
With a related allowance:
Recorded Investment	5,470,000		6,243,000
Unpaid Principal Balance	5,617,000		6,414,000
Related Allowance	147,000		171,000
Average Recorded Investment	5,988,000	7,459,000
Interest Income Recognized	113,000	142,000
Charge- Offs	147,000	168,000
Total:
Recorded Investment	14,827,000		18,019,000
Unpaid Principal Balance	14,974,000		18,190,000
Related Allowance	147,000		171,000
Average Recorded Investment	16,901,000	16,949,000
Interest Income Recognized	273,000	328,000
Charge-offs	1,706,000	514,000
Home Equity & 2nd Mortgage
With no related allowance:
Recorded Investment	1,087,000		1,235,000
Unpaid Principal Balance	1,087,000		1,235,000
Average Recorded Investment	1,077,000	1,014,000
Interest Income Recognized	6,000	9,000
Charge-Offs	368,000	938,000
Total:
Recorded Investment	1,087,000		1,235,000
Unpaid Principal Balance	1,087,000		1,235,000
Average Recorded Investment	1,077,000	1,014,000
Interest Income Recognized	6,000	9,000
Charge-offs	368,000	938,000
Other Consumer
With no related allowance:
Recorded Investment	179,000		12,000
Unpaid Principal Balance	179,000		12,000
Average Recorded Investment	67,000	5,000
Interest Income Recognized	3,000	1,000
Total:
Recorded Investment	179,000		12,000
Unpaid Principal Balance	179,000		12,000
Average Recorded Investment	67,000	5,000
Interest Income Recognized	$ 3,000	$ 1,000