Note 16 - Equity Based Compensation (Details) - Stock Options Outstanding (2011 Stock Incentive Plan [Member], USD $)	12 Months Ended
	Dec. 31, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted-average exercise price
Options outstanding	402,001
Options outstanding, weighted-average remaining contractual life	6 years 240 days
Options outstanding, value of in-the-money stock options	$ 2,329,886
Options exercisable	124,000
Options exercisable, weighted-average remaining contractual life	6 years 146 days
Options exercisable, value of in-the-money stock options	769,300
Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted-average exercise price	$ 10.40
Options outstanding	312,501
Options outstanding, weighted-average remaining contractual life	6 years 138 days
Options outstanding, value of in-the-money stock options	1,968,756
Options exercisable	104,167
Options exercisable, weighted-average remaining contractual life	6 years 138 days
Options exercisable, value of in-the-money stock options	656,252
Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted-average exercise price	$ 11.00
Options outstanding	59,500
Options outstanding, weighted-average remaining contractual life	6 years 197 days
Options outstanding, value of in-the-money stock options	339,150
Options exercisable	19,833
Options exercisable, weighted-average remaining contractual life	6 years 197 days
Options exercisable, value of in-the-money stock options	113,048
Range Three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted-average exercise price	$ 12.96
Options outstanding	4,000
Options outstanding, weighted-average remaining contractual life	9 years 51 days
Options outstanding, value of in-the-money stock options	14,960
Range Four [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted-average exercise price	$ 16.43
Options outstanding	26,000
Options outstanding, weighted-average remaining contractual life	9 years 350 days
Options outstanding, value of in-the-money stock options	$ 7,020