Borrowings Subordinated Debentures (Details) (USD $) In Thousands, unless otherwise specified							12 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 FMIS Trust I [Member]	Feb. 27, 2004 FMIS Trust I [Member]	Dec. 31, 2012 FMIS Trust II [Member]	Apr. 26, 2006 FMIS Trust II [Member]	Dec. 31, 2012 Junior Subordinated Debt [Member] FMIS Trust I [Member]	Dec. 31, 2011 Junior Subordinated Debt [Member] FMIS Trust I [Member]	Dec. 31, 2012 Junior Subordinated Debt [Member] FMIS Trust II [Member]	Dec. 31, 2011 Junior Subordinated Debt [Member] FMIS Trust II [Member]
Debt Instrument [Line Items]
Trust preferred securities issued				$ 10,000		$ 10,000
Investment in Statutory Trust				310		310
Junior subordinated debentures	$ 20,620	$ 20,620	$ 10,310		$ 10,310
Debt Instrument, Interest Rate Terms							three-month London Interbank Offered Rate (“LIBOR”) plus 280 basis points		bore interest at a fixed rate of 6.98% paid quarterly until June 15, 2011 and then converted to floating rate (LIBOR plus 160 basis points) after June 15, 2011
Debt Instrument, Interest Rate at Period End							3.19%	3.10%	1.908%	1.95%