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

3 Months Ended

Mar. 31, 2016

Disclosure Text Block Supplement [Abstract]

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

	March 31,		December 31,
	2016		2015
Commercial unused lines of credit	$	501,735,000	$	522,658,000
Unused lines of credit secured by 1 – 4 family residential properties		62,364,000		61,905,000
Credit card unused lines of credit		16,874,000		15,612,000
Other consumer unused lines of credit		6,497,000		8,583,000
Commitments to make loans		218,392,000		178,034,000
Standby letters of credit		33,567,000		34,946,000
	$	839,429,000	$	821,738,000