Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss), Unrealized holding gain (Loss) on securities arising during period, tax	$ 2,651	$ 2,098
Unrealized holding losses arising during period, net of taxes and realized net gains	1,119	362
Other Comprehensive Income (Loss), Pension liability adjustment, net of Tax	$ 216	$ 126
Class A Common Stock
Conversion of class B common stock to class A common stock	7,500	17,000
Exercised, Amount	5,987	350
Class A and Class B common stock	$ 0.36	$ 0.36
Class B Common Stock
Class A and Class B common stock	$ 0.18	$ 0.18