Securities (Unrealized Losses And Related Fair Values In Securities Portfolios) (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Government Sponsored Enterprises [Member]
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Less Than 12 Months, Fair Value	$ 1,977	$ 948
Less Than 12 Months, Unrealized Losses	23	2
Total, Fair Value	1,977	948
Total, Unrealized Losses	23	2
State And Municipal Securities [Member]
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Less Than 12 Months, Fair Value		275
Total, Fair Value		275
Total, Unrealized Losses
Mortgage-Backed Securities [Member]
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Less Than 12 Months, Fair Value	9,943	9,936
Less Than 12 Months, Unrealized Losses	68	47
12 Months Or More, Fair Value	3,052	4,652
12 Months Or More, Unrealized Losses	36	73
Total, Fair Value	12,995	14,588
Total, Unrealized Losses	104	120
Other Securities [Member]
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Less Than 12 Months, Fair Value		866
Less Than 12 Months, Unrealized Losses		151
12 Months Or More, Fair Value	1,392	908
12 Months Or More, Unrealized Losses	118	92
Total, Fair Value	1,392	1,774
Total, Unrealized Losses	118	243
Total Temporarily Impaired Securities [Member]
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Less Than 12 Months, Fair Value	11,920	12,025
Less Than 12 Months, Unrealized Losses	91	200
12 Months Or More, Fair Value	4,444	5,560
12 Months Or More, Unrealized Losses	154	165
Total, Fair Value	16,364	17,585
Total, Unrealized Losses	$ 245	$ 365