Consolidated Statements of Stockholders’ Equity (Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Exercise of stock options, shares	33,360
Common Stock [Member]
Stock issued as bonus, shares	71,840		64,006
Stock issued for employee stock purchase plan, shares	4,897		5,244
Exercise of stock options, shares	33,360	20,290	4,000
Repurchase of common stock - Shares		92,775	326,789
Vesting bonus shares, net of forfeitures	1,560	829
Stock issued for employee stock purchase plan, shares	3,452	669
Accumulated Other Comprehensive Income (Loss) [Member]
Change in unrealized appreciation on available-for-sale securities, income taxes (in Dollars)	$ 1,028	$ 382	$ 1,721
Retained Earnings [Member]
Cash Dividends, per share (in Dollars per share)	$ 0.44	$ 0.42	$ 0.42