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Note 12 - Earnings Per Common Share (Details) - Numerators and Denominators of the Basic and Diluted Earnings Per Share (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Numerator for basic and diluted earnings per common share:
Net income for the year	$ 4,180,464	$ 4,424,142	$ 6,170,231
Denominator for basic and diluted earnings per common share:
Basic weighted average number of common shares outstanding	10,468,250	11,458,216	13,363,669
Effect of stock options	$ 813,159	$ 825,520	$ 573,690
Diluted weighted average number of shares outstanding	11,281,409	12,283,736	13,937,359
Basic earnings per common share	$ 0.40	$ 0.39	$ 0.46
Diluted earnings per common share	$ 0.37	$ 0.36	$ 0.44

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Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise of stock options or restrictive stock units (RSUs).

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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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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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