Note 9 - Commitments and Off-balance-sheet Risk (Tables)

3 Months Ended

Mar. 31, 2015

Disclosure Text Block Supplement [Abstract]

Summary of Contractual Amounts of Financial Instruments with Off-balance Sheet Risk [Table Text Block]

	March 31,		December 31,
	2015		2014
Commercial unused lines of credit	$	518,801,000	$	554,856,000
Unused lines of credit secured by 1 – 4 family residential properties		62,029,000		60,983,000
Credit card unused lines of credit		12,085,000		11,649,000
Other consumer unused lines of credit		7,681,000		8,673,000
Commitments to make loans		131,561,000		110,126,000
Standby letters of credit		31,033,000		35,461,000
	$	763,190,000	$	781,748,000