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Note 15 - Net Loss Per Share - Basic and Diluted Loss Per Share (Details) - USD ($)	3 Months Ended		6 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator:
Net loss	$ (80,219)	$ (528,163)	$ (1,302,564)	$ (1,042,492)	$ (1,302,564)	$ (1,042,492)
Denominator:
Basic and diluted (in shares)	32,306,207	31,861,916	32,314,038	31,820,632	32,314,038	31,820,632
Net loss per common share - basic and diluted (in dollars per share)	$ 0	$ (0.02)	$ (0.04)	$ (0.03)	$ (0.04)	$ (0.03)
Antidilutive securities (in shares)	4,218,596	4,978,002			4,218,596	4,978,002
Employee Stock Option [Member]
Denominator:
Antidilutive securities (in shares)	4,000,266	4,853,002			4,000,266	4,853,002
Restricted Stock Units (RSUs) [Member]
Denominator:
Antidilutive securities (in shares)	218,330	125,000			218,330	125,000

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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