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Note 12 - Share-based Compensation (Tables)

12 Months Ended

Sep. 30, 2016

Notes Tables

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

		2016						2015
Volatility			49.0%	-	52.0%				51.0%	-	62.0%
Risk-free interest rate			1.0%	-	1.7%				1.0%	-	1.6%
Forfeiture rate				10.0%						10.0%
Dividend yield			2.2%	-	2.7%					0.0%
Expected life in years			3.2	-	4.6				3.2	-	4.6
Weighted average fair value of options granted during the period				$0.70						$1.09

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

		Number				Weighted Average
		of Shares				Exercise Price
Outstanding October 1, 2015			2,852,419			$	2.35
Granted			1,857,000			$	1.93
Forfeited/expired			(304,167	)		$	2.18
Exercised			(1,250	)		$	1.76
Outstanding September 30, 2016			4,404,002			$	2.18
Exercisable September 30, 2016			2,811,617			$	2.30

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	-	$1.76			969,752				5.05			$	1.59				831,063			$	1.59
$1.77	-	$1.99			1,756,750				6.61			$	1.94				365,362			$	1.86
$2.00	-	$2.85			906,250				5.03			$	2.57				855,817			$	2.56
$2.86	-	$3.13			761,250				5.61			$	3.00				755,000			$	3.00
$3.14	-	$3.17			10,000				5.14			$	3.17				4,375			$	3.17
$0.93	-	$3.17			4,404,002				5.76			$	2.18				2,811,617			$	2.30

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

Years Ended September 30,		2016				2015
Cost of revenues		$	24,092			$	25,355
Selling, general and administrative			478,695				473,118
Research and development			102,639				120,728
Total		$	605,426			$	619,201

X

- Definition

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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