Note 11 - Basic and Diluted Earnings Per Common Share (Details) - Summary of Basic and Diluted Earnings Per Common Share - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Numerator for basic and diluted earnings per common share:
Net income for the period (in Dollars)	$ 2,284,995	$ 1,347,182	$ 5,118,938	$ 1,824,021
Denominator for basic and diluted earnings per common share:
Basic weighted average number of common shares outstanding	11,047,136	11,219,101	11,094,618	11,124,357
Effect of outstanding stock options	409,534	510,446	423,487	560,172
Diluted weighted average number of shares outstanding	11,456,670	11,729,547	11,518,105	11,684,529
Basic earnings per common share (in Dollars per share)	$ 0.21	$ 0.12	$ 0.46	$ 0.16
Diluted earnings per common share (in Dollars per share)	$ 0.20	$ 0.11	$ 0.44	$ 0.16