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Note 12 - Share-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		2014				2013
Volatility			54.0% - 76.0%				74.0% - 81.0%
Risk-free interest rate			0.6%-2.0%				0.9%-1.7%
Forfeiture rate			10.0%				10.0%
Dividend yield			0.0%				0.0%
Expected life in years			3.2 - 6.5				6.4

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

		Number				Weighted Average
		of Shares				Exercise Price
Outstanding October 1, 2013			2,394,476			$	1.89
Granted			786,000			$	1.77
Forfeited/expired			(37,000	)		$	2.00
Exercised			(612,941	)		$	0.89
Outstanding September 30, 2014			2,530,535			$	2.09
Exercisable September 30, 2014			2,004,750			$	2.18

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

								Weighted
								Average				Weighted								Weighted
Range of								Remaining				Average								Average
Exercise				Number				Contractual				Exercise				Number				Exercise
Prices				Outstanding				Life				Price				Exercisable				Price
$0.93	-	$1.35			680,282				3.81			$	1.28				638,843			$	1.27
$1.36	-	$1.70			73,750				8.15			$	1.46				-			$	0.00
$1.71	-	$1.85			564,753				6.16			$	1.76				256,532			$	1.76
$1.86	-	$2.30			350,500				6.76			$	2.20				250,000			$	2.27
$2.31	-	$2.65			110,000				1.18			$	2.63				109,375			$	2.63
$2.66	-	$3.13			751,250				7.61			$	3.00				750,000			$	3.00
$0.93	-	$3.13			2,530,535				5.89			$	2.09				2,004,750			$	2.18

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

Years Ended September 30,		2014				2013
Cost of revenue		$	12,629			$	7,336
Selling, general and administrative			500,083				681,147
Research and development			73,041				47,895
Total		$	585,753			$	736,378

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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