Note 4 - Earnings Per Share (Detail) - Percentage of Net Earnings Allocable to Common Shareholders	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Numerator:
Weighted average participating common shares	31,782,786	31,766,753	31,772,136	31,766,753
Add: Weighted average shares of Convertible Preferred Stock	255,000	255,000	255,000	255,000
Weighted average participating shares	32,037,786	32,021,753	32,027,136	32,021,753
Portion allocable to common shareholders	99.20%	99.20%	99.20%	99.20%