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Note 15 - Earnings Per Common Share (Details) - Summary of Basic and Diluted Earnings Per Common Share - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Numerator for basic and diluted earnings per common share:
Net income for the year (in Dollars)	$ 11,373,730	$ 6,374,096	$ 4,180,464
Denominator for basic and diluted earnings per common share:
Basic weighted average number of common shares outstanding	10,968,500	11,220,874	10,468,250
Effect of stock options	391,584	509,524	813,159
Diluted weighted average number of shares outstanding	11,360,084	11,730,398	11,281,409
Basic earnings per common share (in Dollars per share)	$ 1.04	$ 0.57	$ 0.40
Diluted earnings per common share (in Dollars per share)	$ 1.00	$ 0.54	$ 0.37

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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