Consolidated Statements of Stockholders’ Equity (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011
Change in unrealized appreciation on available-for-sale securities, income tax portion (in Dollars)	$ (40)	$ (163)	$ 116
Exercise of stock options, shares	0
Dividends paid per share (in Dollars per share)	$ 0.40	$ 0.38	$ 0.38
Common Stock [Member]
Stock issued as bonus shares	51,245	44,170	47,995
Shares issued	5,103		4,805
Exercise of stock options, shares		1,753	28,566
Shares exchanged under stock option plan		1,067	4,185
Repurchase of common stock – Shares	311,674	137,144