Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Schedule of Weighted Average Number of Shares [Table Text Block]

	Years ended December 31,
	2015		2014		2013
Weighted average shares outstanding – basic		115,677		117,000		117,449
Effect of common stock equivalents		1,051		1,445		1,955
Weighted average shares outstanding – diluted		116,728		118,445		119,404