Note 9 - Stock Incentive Plans (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Schedule Of Noncash Compensation Expenses [Table Text Block]

	For the Three Months Ended June 30, 2017		For the Three Months Ended June 30, 2016		For the Six Months Ended June 30, 2017		For the Six Months Ended June 30, 2016
Stock awards /Stock Option Plans	$	2,478,051	$	841,933	$	4,648,751	$	1,668,546
Total non-cash compensation expense	$	2,478,051	$	841,933	$	4,648,751	$	1,668,546