Note 8 - Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Debt [Table Text Block]

Years Ended December 31,		2012				2011				2010
Federal funds purchased
At December 31 — Balance	$		—		$		—		$		15,000
—Weighted average interest rate			—				—				0.15%
—Weighted average original maturity (Days)			—				—				1
During the year — Maximum month-end balance			30,000				60,000				105,000
—Daily average balance			10,093				10,926				33,192
—Weighted average interest rate paid			0.22%				0.13%				0.22%
—Range of interest rates paid		0.12	–	0.31%		0.07	–	0.25%		0.10	–	0.35%
Commercial paper
At December 31 — Balance	$		15,345		$		13,485		$		14,388
—Weighted average interest rate			0.32%				0.29%				0.29%
—Weighted average original maturity (Days)			35				44				45
During the year — Maximum month-end balance			19,345				16,573				16,927
—Daily average balance			14,826				14,454				14,718
—Weighted average interest rate paid			0.29%				0.30 %				0.30%
—Range of interest rates paid		0.25	–	0.60%		0.20	–	0.60%		0.20	–	0.65%
Short-term borrowings—FRB
At December 31 — Balance	$		—		$		—		$		—
— Weighted average interest rate			—				—				—
— Weighted average original maturity			—				—				—
During the year — Maximum month-end balance			—				—				25,000
— Daily average balance			—				—				3,699
— Weighted average interest rate paid			—				—				0.25%
— Range of interest rates paid			—				—				0.25%
Short-term borrowings—treasury tax and loan and term Federal funds purchased
At December 31 — Balance	$		—		$		—		$		3,490
— Weighted average interest rate			—				—				—
— Weighted average original maturity (Days)			—				—				1
During the year — Maximum month-end balance			—				23,864				46,779
— Daily average balance			—				3,666				7,306
— Weighted average interest rate paid			—				0.07 %				0.25%
— Range of interest rates paid			—			0.00	–	0.31%		0.00	–	0.40%