Note 8 - Commitments and Off-balance Sheet Risk (Tables)

9 Months Ended

Sep. 30, 2015

Disclosure Text Block Supplement [Abstract]

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

	September 30,		December 31,
	2015		2014
Commercial unused lines of credit	$	488,744,000	$	554,856,000
Unused lines of credit secured by 1 – 4 family residential properties		61,534,000		60,983,000
Credit card unused lines of credit		14,100,000		11,649,000
Other consumer unused lines of credit		9,265,000		8,673,000
Commitments to make loans		238,884,000		110,126,000
Standby letters of credit		35,562,000		35,461,000
	$	848,089,000	$	781,748,000