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Allowance for Loan Losses (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	$ 14,384,000	$ 15,034,000	$ 14,384,000	$ 15,034,000
Commercial and municipal risk-rated loans receivable	390,187,000	415,196,000	390,187,000	415,196,000	391,201,000
Residential loans typical loan-to-value range, low (in hundredths)	75.00%		75.00%
Residential loans typical loan-to-value maximum (in hundredths)	80.00%		80.00%
Collateralized consumer loans to individuals loan-to-value maximum range, low (in hundredths)	80.00%		80.00%
Collateralized consumer loans to individuals loan-to-value maximum range, high (in hundredths)	90.00%		90.00%
Delinquent period before residential loans placed on non-accrual status (in days)	90D		90D
Delinquent period before consumer loans charged off (in days)	120D		120D
Allowance for loan losses
Beginning balance	12,954,000	14,000,000	13,000,000	13,316,000
Charge offs	1,425,000	1,057,000	3,895,000	2,570,000
Recoveries	55,000	91,000	379,000	188,000
Provision	2,800,000	2,000,000	4,900,000	4,100,000
Ending balance	14,384,000	15,034,000	14,384,000	15,034,000
Ending balance specifically evaluated for impairment	4,177,000	1,965,000	4,177,000	1,965,000	2,058,000
Ending balance collectively evaluated for impairment	10,207,000	13,069,000	10,207,000	13,069,000	10,942,000
Related loan balances
Ending balance	881,814,000	886,929,000	881,814,000	886,929,000	864,988,000
Ending balance specifically evaluated for impairment	43,374,000	26,981,000	43,374,000	26,981,000	42,120,000
Ending balance collectively evaluated for impairment	838,440,000	859,948,000	838,440,000	859,948,000	822,868,000
Total number of TDR loans	82	36	82	36	59
Number of TDR loans past due	13		13
Balance of total TDR loans	24,980,000	6,663,000	24,980,000	6,663,000	22,858,000
Balance of TDR loans past due	2,487,000		2,487,000
Specific reserves for total TDR loans	2,109,000		2,109,000
Specific reserves for past due TDR loans	203,000		203,000
Number of TDR loans - current period	15		29
Pre-modification outstanding recorded investment	4,955,000		7,919,000
Post-modification outstanding recorded investment	5,105,000		8,107,000
Specific reserves for TDR loans - current period	1,454,000		1,468,000
Number of loans classified as TDRs, greater than 30 days past due	13		13
Balance of loans classified as TDRs, greater than 30 days past due	2,487,000		2,487,000
Number of loans classified as troubled debt restructurings that had been placed on TDR status in previous 12 months	6		6
Loans classified as troubled debt restructurings that had been placed on TDR status in previous 12 months	864,000		864,000
Number of loans classified as troubled debt restructurings that are involved in bankruptcy	5		5
Loans classified as troubled debt restructurings that are involved in bankruptcy	1,194,000		1,194,000
Number of loans classified as troubled debt restructurings that were on non-accrual status	24		24
Loans classified as troubled debt restructurings and that were on non-accrual status	3,562,000		3,562,000
Number Of Loans Classified As Troubled Debt Restructurings That Are Involved In Foreclosure	3		3
Loans Classified As Troubled Debt Restructurings That Are Involved In Foreclosure	413,000		413,000
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Commercial real estate loans maximum loan-to-value (in hundredths)	75.00%		75.00%
Construction loans actual loan portfolio-to-Company capital (in hundredths)	30.30%		30.30%
Construction loans maximum loan portfolio-to-Company capital (in hundredths)	100.00%		100.00%
Construction and non-owner-occupied commercial real estate loan portfolio-to-Company Capital (in hundredths)	90.40%		90.40%
Construction and non-owner-occupied commercial real estate loan portfolio loan-to-Company capital (in hundredths)	300.00%		300.00%
Outstanding loans and commitments subject to review and validation annually by independent consulting firm (in hundredths)	50.00%		50.00%
Strong 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	2,127,000	2,837,000	2,127,000	2,837,000	2,646,000
Above Average 2 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	32,023,000	35,460,000	32,023,000	35,460,000	33,072,000
Satisfactory 3 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	55,269,000	61,661,000	55,269,000	61,661,000	49,326,000
Average 4 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	156,051,000	171,102,000	156,051,000	171,102,000	157,589,000
Watch 5 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	64,205,000	59,430,000	64,205,000	59,430,000	65,395,000
OAEM 6 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	27,141,000	29,925,000	27,141,000	29,925,000	25,932,000
Substandard 7 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	52,643,000	54,775,000	52,643,000	54,775,000	55,260,000
Doubtful 8 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	728,000	6,000	728,000	6,000	1,981,000
Specific Reserves Evaluated Individually for Impairment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	4,177,000	0	4,177,000	0	2,058,000
Allowance for loan losses
Beginning balance					2,058,000
Ending balance	4,177,000	0	4,177,000	0	2,058,000
General Reserves Based on Historical Loss Experience [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	4,648,000	0	4,648,000	0	4,501,000
Allowance for loan losses
Beginning balance					4,501,000
Ending balance	4,648,000	0	4,648,000	0	4,501,000
Reserve for Qualitative Factors [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	3,664,000	0	3,664,000	0	4,433,000
Allowance for loan losses
Beginning balance					4,433,000
Ending balance	3,664,000	0	3,664,000	0	4,433,000
Unallocated Reserves [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	1,895,000	1,356,000	1,895,000	1,356,000	2,008,000
Allowance for loan losses
Beginning balance					2,008,000
Ending balance	1,895,000	1,356,000	1,895,000	1,356,000	2,008,000
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	5,564,000	6,927,000	5,564,000	6,927,000
Commercial and municipal risk-rated loans receivable	253,193,000	263,337,000	253,193,000	263,337,000	255,424,000
Allowance for loan losses
Beginning balance	5,862,000	6,310,000	5,659,000	5,260,000
Charge offs	915,000	546,000	915,000	835,000
Recoveries	1,000	0	1,000	5,000
Provision	616,000	1,163,000	819,000	2,497,000
Ending balance	5,564,000	6,927,000	5,564,000	6,927,000
Ending balance specifically evaluated for impairment	1,133,000	613,000	1,133,000	613,000	808,000
Ending balance collectively evaluated for impairment	4,431,000	6,314,000	4,431,000	6,314,000	4,851,000
Related loan balances
Ending balance	253,193,000	263,337,000	253,193,000	263,337,000	255,424,000
Ending balance specifically evaluated for impairment	13,795,000	6,746,000	13,795,000	6,746,000	10,141,000
Ending balance collectively evaluated for impairment	239,398,000	256,591,000	239,398,000	256,591,000	245,283,000
Total number of TDR loans	17		17
Number of TDR loans past due	1		1
Balance of total TDR loans	9,216,000		9,216,000
Balance of TDR loans past due	269,000		269,000
Specific reserves for total TDR loans	496,000		496,000
Specific reserves for past due TDR loans	111,000		111,000
Number of TDR loans - current period	5		12
Pre-modification outstanding recorded investment	1,449,000		3,845,000
Post-modification outstanding recorded investment	1,598,000		4,032,000
Specific reserves for TDR loans - current period	152,000		152,000
Commercial Real Estate [Member] | Strong 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	21,000	29,000	21,000	29,000	23,000
Commercial Real Estate [Member] | Above Average 2 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	19,319,000	21,021,000	19,319,000	21,021,000	21,334,000
Commercial Real Estate [Member] | Satisfactory 3 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	36,207,000	40,346,000	36,207,000	40,346,000	33,119,000
Commercial Real Estate [Member] | Average 4 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	99,855,000	114,124,000	99,855,000	114,124,000	106,171,000
Commercial Real Estate [Member] | Watch 5 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	41,089,000	38,095,000	41,089,000	38,095,000	44,215,000
Commercial Real Estate [Member] | OAEM 6 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	21,135,000	19,572,000	21,135,000	19,572,000	18,309,000
Commercial Real Estate [Member] | Substandard 7 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	34,931,000	30,150,000	34,931,000	30,150,000	31,575,000
Commercial Real Estate [Member] | Doubtful 8 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	636,000	0	636,000	0	678,000
Commercial Real Estate [Member] | Specific Reserves Evaluated Individually for Impairment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	1,133,000	613,000	1,133,000	613,000	808,000
Allowance for loan losses
Beginning balance					808,000
Ending balance	1,133,000	613,000	1,133,000	613,000	808,000
Commercial Real Estate [Member] | General Reserves Based on Historical Loss Experience [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	2,685,000	2,463,000	2,685,000	2,463,000	2,578,000
Allowance for loan losses
Beginning balance					2,578,000
Ending balance	2,685,000	2,463,000	2,685,000	2,463,000	2,578,000
Commercial Real Estate [Member] | Reserve for Qualitative Factors [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	1,746,000	3,851,000	1,746,000	3,851,000	2,273,000
Allowance for loan losses
Beginning balance					2,273,000
Ending balance	1,746,000	3,851,000	1,746,000	3,851,000	2,273,000
Commercial Real Estate [Member] | Unallocated Reserves [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	0	0	0	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	0	0	0	0
Commercial Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	1,373,000	702,000	1,373,000	702,000
Commercial and municipal risk-rated loans receivable	33,072,000	29,386,000	33,072,000	29,386,000	32,574,000
Allowance for loan losses
Beginning balance	704,000	639,000	658,000	1,012,000
Charge offs	0	0	0	0
Recoveries	0	0	246,000	0
Provision	669,000	63,000	469,000	(310,000)
Ending balance	1,373,000	702,000	1,373,000	702,000
Ending balance specifically evaluated for impairment	787,000	0	787,000	0	33,000
Ending balance collectively evaluated for impairment	586,000	702,000	586,000	702,000	625,000
Related loan balances
Ending balance	33,072,000	29,386,000	33,072,000	29,386,000	32,574,000
Ending balance specifically evaluated for impairment	3,619,000	772,000	3,619,000	772,000	5,702,000
Ending balance collectively evaluated for impairment	29,453,000	28,614,000	29,453,000	28,614,000	26,872,000
Total number of TDR loans	2		2
Number of TDR loans past due	0		0
Balance of total TDR loans	3,099,000		3,099,000
Balance of TDR loans past due	0		0
Specific reserves for total TDR loans	696,000		696,000
Specific reserves for past due TDR loans	0		0
Number of TDR loans - current period	1		1
Pre-modification outstanding recorded investment	1,951,000		1,951,000
Post-modification outstanding recorded investment	1,951,000		1,951,000
Specific reserves for TDR loans - current period	696,000		696,000
Commercial Construction [Member] | Strong 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0	0	0
Commercial Construction [Member] | Above Average 2 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	170,000	10,000	170,000	10,000	0
Commercial Construction [Member] | Satisfactory 3 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	1,751,000	1,616,000	1,751,000	1,616,000	1,365,000
Commercial Construction [Member] | Average 4 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	20,932,000	12,894,000	20,932,000	12,894,000	17,125,000
Commercial Construction [Member] | Watch 5 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	1,969,000	6,293,000	1,969,000	6,293,000	3,287,000
Commercial Construction [Member] | OAEM 6 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	1,649,000	4,015,000	1,649,000	4,015,000	2,320,000
Commercial Construction [Member] | Substandard 7 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	6,601,000	4,558,000	6,601,000	4,558,000	7,323,000
Commercial Construction [Member] | Doubtful 8 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0	0	1,154,000
Commercial Construction [Member] | Specific Reserves Evaluated Individually for Impairment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	787,000	0	787,000	0	33,000
Allowance for loan losses
Beginning balance					33,000
Ending balance	787,000	0	787,000	0	33,000
Commercial Construction [Member] | General Reserves Based on Historical Loss Experience [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	355,000	274,000	355,000	274,000	332,000
Allowance for loan losses
Beginning balance					332,000
Ending balance	355,000	274,000	355,000	274,000	332,000
Commercial Construction [Member] | Reserve for Qualitative Factors [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	231,000	428,000	231,000	428,000	293,000
Allowance for loan losses
Beginning balance					293,000
Ending balance	231,000	428,000	231,000	428,000	293,000
Commercial Construction [Member] | Unallocated Reserves [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	0	0	0	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	0	0	0	0
Commercial Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	2,476,000	3,323,000	2,476,000	3,323,000
Commercial and municipal risk-rated loans receivable	87,833,000	102,499,000	87,833,000	102,499,000	86,982,000
Allowance for loan losses
Beginning balance	2,125,000	2,535,000	2,063,000	2,377,000
Charge offs	160,000	158,000	2,162,000	319,000
Recoveries	9,000	3,000	11,000	20,000
Provision	502,000	943,000	2,564,000	1,245,000
Ending balance	2,476,000	3,323,000	2,476,000	3,323,000
Ending balance specifically evaluated for impairment	932,000	857,000	932,000	857,000	402,000
Ending balance collectively evaluated for impairment	1,544,000	2,466,000	1,544,000	2,466,000	1,661,000
Related loan balances
Ending balance	87,833,000	102,499,000	87,833,000	102,499,000	86,982,000
Ending balance specifically evaluated for impairment	4,100,000	2,095,000	4,100,000	2,095,000	7,042,000
Ending balance collectively evaluated for impairment	83,733,000	100,404,000	83,733,000	100,404,000	79,940,000
Total number of TDR loans	15		15
Number of TDR loans past due	3		3
Balance of total TDR loans	1,984,000		1,984,000
Balance of TDR loans past due	180,000		180,000
Specific reserves for total TDR loans	590,000		590,000
Specific reserves for past due TDR loans	0		0
Number of TDR loans - current period	6		9
Pre-modification outstanding recorded investment	700,000		712,000
Post-modification outstanding recorded investment	701,000		713,000
Specific reserves for TDR loans - current period	545,000		544,000
Commercial Other [Member] | Strong 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	284,000	467,000	284,000	467,000	465,000
Commercial Other [Member] | Above Average 2 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	4,601,000	3,657,000	4,601,000	3,657,000	4,229,000
Commercial Other [Member] | Satisfactory 3 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	13,541,000	15,714,000	13,541,000	15,714,000	10,981,000
Commercial Other [Member] | Average 4 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	32,700,000	41,208,000	32,700,000	41,208,000	31,600,000
Commercial Other [Member] | Watch 5 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	21,147,000	15,042,000	21,147,000	15,042,000	17,893,000
Commercial Other [Member] | OAEM 6 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	4,357,000	6,338,000	4,357,000	6,338,000	5,303,000
Commercial Other [Member] | Substandard 7 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	11,111,000	20,067,000	11,111,000	20,067,000	16,362,000
Commercial Other [Member] | Doubtful 8 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	92,000	6,000	92,000	6,000	149,000
Commercial Other [Member] | Specific Reserves Evaluated Individually for Impairment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	932,000	857,000	932,000	857,000	402,000
Allowance for loan losses
Beginning balance					402,000
Ending balance	932,000	857,000	932,000	857,000	402,000
Commercial Other [Member] | General Reserves Based on Historical Loss Experience [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	935,000	962,000	935,000	962,000	883,000
Allowance for loan losses
Beginning balance					883,000
Ending balance	935,000	962,000	935,000	962,000	883,000
Commercial Other [Member] | Reserve for Qualitative Factors [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	609,000	1,504,000	609,000	1,504,000	778,000
Allowance for loan losses
Beginning balance					778,000
Ending balance	609,000	1,504,000	609,000	1,504,000	778,000
Commercial Other [Member] | Unallocated Reserves [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	0	0	0	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	0	0	0	0
Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	19,000	19,000	19,000	19,000
Commercial and municipal risk-rated loans receivable	16,089,000	19,974,000	16,089,000	19,974,000	16,221,000
Allowance for loan losses
Beginning balance	19,000	19,000	19,000	19,000
Charge offs	0	0	0	0
Recoveries	0	0	0	0
Provision	0	0	0	0
Ending balance	19,000	19,000	19,000	19,000
Ending balance specifically evaluated for impairment	0	0	0	0	0
Ending balance collectively evaluated for impairment	19,000	19,000	19,000	19,000	19,000
Related loan balances
Ending balance	16,089,000	19,974,000	16,089,000	19,974,000	16,221,000
Ending balance specifically evaluated for impairment	0	0	0	0	0
Ending balance collectively evaluated for impairment	16,089,000	19,974,000	16,089,000	19,974,000	16,221,000
Total number of TDR loans	0		0
Number of TDR loans past due	0		0
Balance of total TDR loans	0		0
Balance of TDR loans past due	0		0
Specific reserves for total TDR loans	0		0
Specific reserves for past due TDR loans	0		0
Number of TDR loans - current period	0		0
Pre-modification outstanding recorded investment	0		0
Post-modification outstanding recorded investment	0		0
Specific reserves for TDR loans - current period	0		0
Municipal [Member] | Strong 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	1,822,000	2,341,000	1,822,000	2,341,000	2,158,000
Municipal [Member] | Above Average 2 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	7,933,000	10,772,000	7,933,000	10,772,000	7,509,000
Municipal [Member] | Satisfactory 3 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	3,770,000	3,985,000	3,770,000	3,985,000	3,861,000
Municipal [Member] | Average 4 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	2,564,000	2,876,000	2,564,000	2,876,000	2,693,000
Municipal [Member] | Watch 5 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0	0	0
Municipal [Member] | OAEM 6 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0	0	0
Municipal [Member] | Substandard 7 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0	0	0
Municipal [Member] | Doubtful 8 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0	0	0
Municipal [Member] | Specific Reserves Evaluated Individually for Impairment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	0	0	0	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	0	0	0	0
Municipal [Member] | General Reserves Based on Historical Loss Experience [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	0	0	0	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	0	0	0	0
Municipal [Member] | Reserve for Qualitative Factors [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	19,000	19,000	19,000	19,000	19,000
Allowance for loan losses
Beginning balance					19,000
Ending balance	19,000	19,000	19,000	19,000	19,000
Municipal [Member] | Unallocated Reserves [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	0	0	0	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	0	0	0	0
Residential Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	1,587,000	1,356,000	1,587,000	1,356,000
Allowance for loan losses
Beginning balance	1,236,000	1,405,000	1,159,000	1,408,000
Charge offs	136,000	240,000	375,000	697,000
Recoveries	1,000	1,000	2,000	4,000
Provision	486,000	190,000	801,000	641,000
Ending balance	1,587,000	1,356,000	1,587,000	1,356,000
Ending balance specifically evaluated for impairment	966,000	265,000	966,000	265,000	478,000
Ending balance collectively evaluated for impairment	621,000	1,091,000	621,000	1,091,000	681,000
Related loan balances
Ending balance	368,876,000	335,807,000	368,876,000	335,807,000	341,286,000
Ending balance specifically evaluated for impairment	19,052,000	16,191,000	19,052,000	16,191,000	16,821,000
Ending balance collectively evaluated for impairment	349,824,000	319,616,000	349,824,000	319,616,000	324,465,000
Total number of TDR loans	48		48
Number of TDR loans past due	9		9
Balance of total TDR loans	10,681,000		10,681,000
Balance of TDR loans past due	2,038,000		2,038,000
Specific reserves for total TDR loans	327,000		327,000
Specific reserves for past due TDR loans	92,000		92,000
Number of TDR loans - current period	3		7
Pre-modification outstanding recorded investment	855,000		1,411,000
Post-modification outstanding recorded investment	855,000		1,411,000
Specific reserves for TDR loans - current period	61,000		76,000
Residential Term [Member] | Specific Reserves Evaluated Individually for Impairment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	966,000	265,000	966,000	265,000	478,000
Allowance for loan losses
Beginning balance					478,000
Ending balance	966,000	265,000	966,000	265,000	478,000
Residential Term [Member] | General Reserves Based on Historical Loss Experience [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	165,000	505,000	165,000	505,000	222,000
Allowance for loan losses
Beginning balance					222,000
Ending balance	165,000	505,000	165,000	505,000	222,000
Residential Term [Member] | Reserve for Qualitative Factors [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	456,000	586,000	456,000	586,000	459,000
Allowance for loan losses
Beginning balance					459,000
Ending balance	456,000	586,000	456,000	586,000	459,000
Residential Term [Member] | Unallocated Reserves [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	0	0	0	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	0	0	0	0
Residential Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	58,000	35,000	58,000	35,000
Allowance for loan losses
Beginning balance	59,000	146,000	255,000	44,000
Charge offs	118,000	0	118,000	505,000
Recoveries	0	0	0	0
Provision	117,000	(111,000)	(79,000)	496,000
Ending balance	58,000	35,000	58,000	35,000
Ending balance specifically evaluated for impairment	48,000	0	48,000	0	235,000
Ending balance collectively evaluated for impairment	10,000	35,000	10,000	35,000	20,000
Related loan balances
Ending balance	6,449,000	11,063,000	6,449,000	11,063,000	10,469,000
Ending balance specifically evaluated for impairment	1,336,000	334,000	1,336,000	334,000	1,198,000
Ending balance collectively evaluated for impairment	5,113,000	10,729,000	5,113,000	10,729,000	9,271,000
Total number of TDR loans	0		0
Number of TDR loans past due	0		0
Balance of total TDR loans	0		0
Balance of TDR loans past due	0		0
Specific reserves for total TDR loans	0		0
Specific reserves for past due TDR loans	0		0
Number of TDR loans - current period	0		0
Pre-modification outstanding recorded investment	0		0
Post-modification outstanding recorded investment	0		0
Specific reserves for TDR loans - current period	0		0
Residential Construction [Member] | Specific Reserves Evaluated Individually for Impairment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	48,000	0	48,000	0	235,000
Allowance for loan losses
Beginning balance					235,000
Ending balance	48,000	0	48,000	0	235,000
Residential Construction [Member] | General Reserves Based on Historical Loss Experience [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	2,000	16,000	2,000	16,000	6,000
Allowance for loan losses
Beginning balance					6,000
Ending balance	2,000	16,000	2,000	16,000	6,000
Residential Construction [Member] | Reserve for Qualitative Factors [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	8,000	19,000	8,000	19,000	14,000
Allowance for loan losses
Beginning balance					14,000
Ending balance	8,000	19,000	8,000	19,000	14,000
Residential Construction [Member] | Unallocated Reserves [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	0	0	0	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	0	0	0	0
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	603,000	664,000	603,000	664,000
Allowance for loan losses
Beginning balance	568,000	713,000	584,000	646,000
Charge offs	96,000	69,000	276,000	169,000
Recoveries	44,000	86,000	119,000	158,000
Provision	87,000	(66,000)	176,000	29,000
Ending balance	603,000	664,000	603,000	664,000
Ending balance specifically evaluated for impairment	11,000	65,000	11,000	65,000	11,000
Ending balance collectively evaluated for impairment	592,000	599,000	592,000	599,000	573,000
Related loan balances
Ending balance	15,613,000	17,639,000	15,613,000	17,639,000	16,788,000
Ending balance specifically evaluated for impairment	16,000	103,000	16,000	103,000	53,000
Ending balance collectively evaluated for impairment	15,597,000	17,536,000	15,597,000	17,536,000	16,735,000
Total number of TDR loans	0		0
Number of TDR loans past due	0		0
Balance of total TDR loans	0		0
Balance of TDR loans past due	0		0
Specific reserves for total TDR loans	0		0
Specific reserves for past due TDR loans	0		0
Number of TDR loans - current period	0		0
Pre-modification outstanding recorded investment	0		0
Post-modification outstanding recorded investment	0		0
Specific reserves for TDR loans - current period	0		0
Consumer [Member] | Specific Reserves Evaluated Individually for Impairment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	11,000	65,000	11,000	65,000	11,000
Allowance for loan losses
Beginning balance					11,000
Ending balance	11,000	65,000	11,000	65,000	11,000
Consumer [Member] | General Reserves Based on Historical Loss Experience [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	351,000	264,000	351,000	264,000	331,000
Allowance for loan losses
Beginning balance					331,000
Ending balance	351,000	264,000	351,000	264,000	331,000
Consumer [Member] | Reserve for Qualitative Factors [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	241,000	335,000	241,000	335,000	242,000
Allowance for loan losses
Beginning balance					242,000
Ending balance	241,000	335,000	241,000	335,000	242,000
Consumer [Member] | Unallocated Reserves [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	0	0	0	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	0	0	0	0
Unallocated Financing Receivables [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	1,895,000	1,356,000	1,895,000	1,356,000
Allowance for loan losses
Beginning balance	1,699,000	1,555,000	2,008,000	1,880,000
Charge offs	0	0	0	0
Recoveries	0	0	0	0
Provision	196,000	(199,000)	(113,000)	(524,000)
Ending balance	1,895,000	1,356,000	1,895,000	1,356,000
Ending balance specifically evaluated for impairment	0	0	0	0	0
Ending balance collectively evaluated for impairment	1,895,000	1,356,000	1,895,000	1,356,000	2,008,000
Related loan balances
Ending balance	0	0	0	0	0
Ending balance specifically evaluated for impairment	0	0	0	0	0
Ending balance collectively evaluated for impairment	0	0	0	0	0
Unallocated Financing Receivables [Member] | Specific Reserves Evaluated Individually for Impairment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	1,965,000	0	1,965,000	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	1,965,000	0	1,965,000	0
Unallocated Financing Receivables [Member] | General Reserves Based on Historical Loss Experience [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	4,569,000	0	4,569,000	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	4,569,000	0	4,569,000	0
Unallocated Financing Receivables [Member] | Reserve for Qualitative Factors [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	7,144,000	0	7,144,000	0
Allowance for loan losses
Beginning balance					0
Ending balance	0	7,144,000	0	7,144,000	0
Unallocated Financing Receivables [Member] | Unallocated Reserves [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	1,895,000	1,356,000	1,895,000	1,356,000	2,008,000
Allowance for loan losses
Beginning balance					2,008,000
Ending balance	1,895,000	1,356,000	1,895,000	1,356,000	2,008,000
Home Equity Line Of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	809,000	652,000	809,000	652,000
Allowance for loan losses
Beginning balance	682,000	678,000	595,000	670,000
Charge offs	0	44,000	49,000	45,000
Recoveries	0	1,000	0	1,000
Provision	127,000	17,000	263,000	26,000
Ending balance	809,000	652,000	809,000	652,000
Ending balance specifically evaluated for impairment	300,000	165,000	300,000	165,000	91,000
Ending balance collectively evaluated for impairment	509,000	487,000	509,000	487,000	504,000
Related loan balances
Ending balance	100,689,000	107,224,000	100,689,000	107,224,000	105,244,000
Ending balance specifically evaluated for impairment	1,456,000	740,000	1,456,000	740,000	1,163,000
Ending balance collectively evaluated for impairment	99,233,000	106,484,000	99,233,000	106,484,000	104,081,000
Total number of TDR loans	0		0
Number of TDR loans past due	0		0
Balance of total TDR loans	0		0
Balance of TDR loans past due	0		0
Specific reserves for total TDR loans	0		0
Specific reserves for past due TDR loans	0		0
Number of TDR loans - current period	0		0
Pre-modification outstanding recorded investment	0		0
Post-modification outstanding recorded investment	0		0
Specific reserves for TDR loans - current period	0		0
Home Equity Line Of Credit [Member] | Specific Reserves Evaluated Individually for Impairment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	300,000	165,000	300,000	165,000	91,000
Allowance for loan losses
Beginning balance					91,000
Ending balance	300,000	165,000	300,000	165,000	91,000
Home Equity Line Of Credit [Member] | General Reserves Based on Historical Loss Experience [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	155,000	85,000	155,000	85,000	149,000
Allowance for loan losses
Beginning balance					149,000
Ending balance	155,000	85,000	155,000	85,000	149,000
Home Equity Line Of Credit [Member] | Reserve for Qualitative Factors [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	354,000	402,000	354,000	402,000	355,000
Allowance for loan losses
Beginning balance					355,000
Ending balance	354,000	402,000	354,000	402,000	355,000
Home Equity Line Of Credit [Member] | Unallocated Reserves [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses	0	0	0	0	0
Allowance for loan losses
Beginning balance					0
Ending balance	$ 0	$ 0	$ 0	$ 0	$ 0

X

- Definition

The high maximum percentage of loan to value for consumer loans based on purchase price of the collateral.

+ References

No definition available.

+ Details

Name:	fnlc_CollateralizedConsumerLoansToIndividualsLoanToValueMaximumRangeHigh
Namespace Prefix:	fnlc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The low maximum percentage of loan to value for consumer loans based on purchase price of the collateral.

+ References

No definition available.

+ Details

Name:	fnlc_CollateralizedConsumerLoansToIndividualsLoanToValueMaximumRangeLow
Namespace Prefix:	fnlc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Loans subject to review and validation annually by independent consulting firm as well internal credit review function.

+ References

No definition available.

+ Details

Name:	fnlc_CommercialAndMunicipalRiskRatedLoansReceivable
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The maximum percentage of loan to value for commercial real estate loans based on current appraisal information.

+ References

No definition available.

+ Details

Name:	fnlc_CommercialRealEstateLoansMaximumLoanToValue
Namespace Prefix:	fnlc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The regulatory maximum allowed ratio of loan portfolio to Company capital for construction and non-owner-occupied commercial real estate.

+ References

No definition available.

+ Details

Name:	fnlc_ConstructionAndNonOwnerOccupiedCommercialRealEstateLoansMaximumLoanPortfolioToCompanyCaptial
Namespace Prefix:	fnlc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The actual ratio of loan amount to Company capital for construction and non-owner-occupied commercial real estate.

+ References

No definition available.

+ Details

Name:	fnlc_ConstructionAndNonOwnerOccupiedCommercialRealEstateLoansPortfolioToCompanyCapital
Namespace Prefix:	fnlc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The regulatory maximum allowed ratio of loan portfolio to Company capital for construction loans.

+ References

No definition available.

+ Details

Name:	fnlc_ConstructionLoanPortfolioMaximumToCompanyCapital
Namespace Prefix:	fnlc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The ratio of loan portfolio to Company capital for construction loans .

+ References

No definition available.

+ Details

Name:	fnlc_ConstructionLoansActualLoanPortfolioToCompanyCapital
Namespace Prefix:	fnlc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Specific allowance for loan and lease losses on receivable financings greater 30 days past due that are classified as troubled debt restructurings during the period and that had been placed in TDR status in the previous 12 months.

+ References

No definition available.

+ Details

Name:	fnlc_DaysPastDuePlacedInTDRInPrevious12Months
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The minimum amount of days past due at which loans are considered charged off.

+ References

No definition available.

+ Details

Name:	fnlc_DelinquentPeriodBeforeConsumerLoansChargedOff
Namespace Prefix:	fnlc_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The minimum amount of days past due at which residential loans are placed on non-accrual status..

+ References

No definition available.

+ Details

Name:	fnlc_DelinquentPeriodBeforeResidentialLoansPlacedOnNonAccrualStatus
Namespace Prefix:	fnlc_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Carrying amount of loans classified as troubled debt restructurings that are involved in bankruptcy as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableLoansClassifiedAsTroubledDebtRestructuringsThatAreInvolvedInBankruptcy
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Carrying amount of loans classified as troubled debt restructurings that had been placed on TDR status in the previous 12 montsh.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableLoansClassifiedAsTroubledDebtRestructuringsThatHadBeenPlacedOnTdrStatusInPrevious12Months
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Carrying amount of loans classified as troubled debt restructurings that were on non-accrual status as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableLoansClassifiedAsTroubledDebtRestructuringsThatWereOnNonAccrualStatus
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The number of financing receivables that have been modified by troubled debt restructurings during the current period.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableModificationsNumberOfContractsDuringPeriod
Namespace Prefix:	fnlc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of financing receivables greater than 30 days past due that have been modified by troubled debt restructurings.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableModificationsNumberOfContractsGreaterThan30DaysPastDue
Namespace Prefix:	fnlc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of financing receivables greater than 30 days past due that have been modified by troubled debt restructurings and that have been placed in the TDR status in the previous 12 months.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableModificationsNumberOfContractsGreaterThan30DaysPastDuePlaceInTDRInPrevious12Months
Namespace Prefix:	fnlc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings after the financing receivable has been modified during the current period.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableModificationsPostModificationRecordedInvestmentDuringPeriod
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings before the financing receivable has been modified during the current period.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableModificationsPreModificationRecordedInvestmentDuringPeriod
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The number of loans classified as troubled debt restructurings that are involved in bankruptcy as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableNumberOfLoansClassifiedAsTroubledDebtRestructuringsThatAreInvolvedInBankruptcy
Namespace Prefix:	fnlc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of loans classified as troubled debt restructurings that had been placed on TDR status in the previous 12 months.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableNumberOfLoansClassifiedAsTroubledDebtRestructuringsThatHadBeenPlacedOnTdrStatusInPrevious12Months
Namespace Prefix:	fnlc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of loans classified as troubled debt restructurings that were on non-accrual status as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableNumberOfLoansClassifiedAsTroubledDebtRestructuringsThatWereOnNonAccrualStatus
Namespace Prefix:	fnlc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Financing receivables that are greater than 30 days past due.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableRecordedInvestmentGreaterThan30DaysPastDue
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Financing receivables that are greater than 30 days past due and that had been placed in TDR status in the previous 12 months.

+ References

No definition available.

+ Details

Name:	fnlc_FinancingReceivableRecordedInvestmentGreaterThan30DaysPastDuePlacedInTDRInPrevious12Months
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Loans classified as troubled debt restructurings that are involved in foreclosure as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	fnlc_LoansClassifiedAsTroubledDebtRestructuringsThatAreInvolvedInForeclosure
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of loans classified as troubled debt restructurings that are involved in foreclosure as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	fnlc_NumberOfLoansClassifiedAsTroubledDebtRestructuringsThatAreInvolvedInForeclosure
Namespace Prefix:	fnlc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Percentage of loans and commitments subject to review by an independent consulting firm each year.

+ References

No definition available.

+ Details

Name:	fnlc_OutstandingLoansAndCommitmentsSubjectByIndependentConsultingFirm
Namespace Prefix:	fnlc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	fnlc_RelatedLoanBalancesAbstract
Namespace Prefix:	fnlc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The high percentage of loan to value range for residential loans based on current appraisal information.

+ References

No definition available.

+ Details

Name:	fnlc_ResidentialLoansTypicalLoanToValueRangeHigh
Namespace Prefix:	fnlc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The low percentage of loan to value range for residential loans based on current appraisal information.

+ References

No definition available.

+ Details

Name:	fnlc_ResidentialLoansTypicalLoanToValueRangeLow
Namespace Prefix:	fnlc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Specific allowance for loan and lease losses on receivable financings that are classified as troubled debt restructurings during the current period.

+ References

No definition available.

+ Details

Name:	fnlc_TroubledDebtRestructuringLoansAndLeasesReceivableSpecificAllowanceCurrentPeriod
Namespace Prefix:	fnlc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Specific allowance for loan and lease losses on receivable financings that are classified as troubled debt restructurings during the period.

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Reflects the gross amount charged against earnings during the period as credit losses (bad debt expense) based on review of the loan and lease portfolio and application of the methodology for estimating credit losses.

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Reflects a reduction in bad debt expense attributable to collections of loans and lease receivables which had previously been fully or partially charged off as bad debts.

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Reflects the amount of loans and leases that have been removed, or charged off, from both loan receivables and the reserve for credit losses, typically because they are considered to be not salvageable or have been purchased by unconsolidated collection entities.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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The valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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The number of financing receivables that have been modified by troubled debt restructurings.

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

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The allowance for loan and lease losses represents the reserve to cover probable credit losses related to specifically identified loans and leases, as well as probable credit losses inherent in the remainder of the loan portfolio as of the balance sheet date. For banks, include currently required allocated transfer risk reserves. Include carryover of or adjustments to the allowance for loan losses in connection with business combinations determined to be appropriate.

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Reflects the aggregate gross carrying amount of all categories of loans and leases held in portfolio, after deducting deferred income, but before deducting the allowance for losses on loans and leases.

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