Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Fair ValueAvailable-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate LossesAvailable-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair ValueAvailable-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate LossesAvailable-for-sale Securities, Continuous Unrealized Loss Position, Fair ValueAvailable-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses
2007Debt and Securites Other than Mortgage-backed Securities [Member]US Government Agencies Debt Securities [Member]000000
US States and Political Subdivisions [Member]328,0008,0009,857,00033,00010,185,00041,000
US Government-sponsored Enterprises Debt Securities [Member]1,384,00015,0002,081,00033,0003,465,00048,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]148,537,000593,000789,643,00011,834,000938,180,00012,427,000
Mortgage-backed Securities, Issued by Private Enterprises [Member]00304,440,0008,533,000304,440,0008,533,000
Mortgage-backed Securities [Member]148,537,000593,0001,094,083,00020,367,0001,242,620,00020,960,000
Other Debt Securities [Member]00218,981,0001,012,000218,981,0001,012,000
Major Types of Debt and Equity Securities [Domain]150,249,000616,0001,325,002,00021,445,0001,475,251,00022,061,000
2006Debt and Securites Other than Mortgage-backed Securities [Member]US Government Agencies Debt Securities [Member]1,097,0004,0002,253,00036,0003,350,00040,000
US States and Political Subdivisions [Member]8,738,00032,00014,887,000146,00023,625,000178,000
US Government-sponsored Enterprises Debt Securities [Member]155,494,000536,00067,310,000694,000222,804,0001,230,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]150,042,0001,276,0001,470,154,00040,937,0001,620,196,00042,213,000
Mortgage-backed Securities, Issued by Private Enterprises [Member]41,643,000923,000315,121,0007,000,000356,764,0007,923,000
Mortgage-backed Securities [Member]191,685,0002,199,0001,785,275,00047,937,0001,976,960,00050,136,000
Other Debt Securities [Member]00318,836,0006,115,000318,836,0006,115,000
Major Types of Debt and Equity Securities [Domain]357,014,0002,771,0002,188,561,00054,928,0002,545,575,00057,699,000