Note 11 - Earnings (Loss) Per Share - Earnings Per Share Numerator and Denominator (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Numerator:
Numerator for basic and diluted earnings per share, net income (loss) available to common shareholders	$ (1,196,642)	$ 1,016,088
Denominator:
Denominator for basic earnings per share, weighted average shares outstanding (in shares)	7,838,197	7,389,177
Effect of dilutive securities-stock options and restricted awards (in shares)		4,599,003
Denominator for diluted earnings per share, adjusted weighted average shares and assumed conversion (in shares)	7,838,197	11,988,180
Basic earnings (loss) per common share (in dollars per share)	$ (0.15)	$ 0.14
Diluted earnings (loss) per common share and common share equivalent (in dollars per share)	$ (0.15)	$ 0.08