Loans Receivable (Financing Receivables) and Allowance for Loan Losses (Details 5) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	$ 339,649	$ 380,360
Commercial
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	48,699	47,907
Commercial Mortgage
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	222,768	263,714
Commercial construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	48,575	49,902
Consumer construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	19,607	18,837
RR8
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	29,995	39,648
RR8 \| Commercial
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	2,696	2,678
RR8 \| Commercial Mortgage
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	10,648	26,262
RR8 \| Commercial construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	16,651	10,708
RR8 \| Consumer construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	0	0
RR7
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	33,418	34,797
RR7 \| Commercial
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	8,047	7,268
RR7 \| Commercial Mortgage
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	22,247	17,174
RR7 \| Commercial construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	3,124	10,355
RR7 \| Consumer construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	0	0
RR6
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	68,461	73,871
RR6 \| Commercial
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	10,395	9,966
RR6 \| Commercial Mortgage
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	43,947	48,754
RR6 \| Commercial construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	14,119	15,151
RR6 \| Consumer construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	0	0
RR5
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	123,275	130,101
RR5 \| Commercial
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	17,936	16,008
RR5 \| Commercial Mortgage
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	90,658	101,312
RR5 \| Commercial construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	14,681	12,781
RR5 \| Consumer construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	0	0
RR4
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	81,425	98,759
RR4 \| Commercial
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	9,601	11,971
RR4 \| Commercial Mortgage
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	52,217	67,044
RR4 \| Commercial construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	0	907
RR4 \| Consumer construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	19,607	18,837
RR3
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	3,051	3,168
RR3 \| Commercial
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	0	0
RR3 \| Commercial Mortgage
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	3,051	3,168
RR3 \| Commercial construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	0	0
RR3 \| Consumer construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	0	0
RR1
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	24	16
RR1 \| Commercial
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	24	16
RR1 \| Commercial Mortgage
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	0	0
RR1 \| Commercial construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	0	0
RR1 \| Consumer construction
Credit quality breakdown of commercial loan portfolio by class
Commercial loan	$ 0	$ 0

- Definition

Reflects the net carrying amount of commercial loans and leases held in portfolio, after deducting deferred income, but before deducting the allowance for losses on commercial loans and leases.

+ References+ Details

FIRST MARINER BANCORP 10-Q