Note 14 - Share-based Compensation (Tables)

9 Months Ended

Jun. 30, 2019

Notes Tables

Share-based Payment Arrangement, Option, Activity [Table Text Block]

	Number of Shares			Weighted Average Exercise Price
Outstanding September 30, 2018		3,394,858		$	2.18
Granted		-		$	-
Forfeited/expired		(768,334	)	$	2.99
Exercised		(35,282	)	$	1.55
Outstanding June 30, 2019		2,591,242		$	1.94
Exerciseable June 30, 2019		1,736,114		$	1.93

Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

					Weighted Average		Weighted Average				Weighted Average
Range of			Number		Remaining		Exercise		Number		Exercise
Exercise Prices			Outstanding		Contractual Life		Price		Exercisable		Price
$1.31	-	$1.69		572,266		2.91	$	1.57		557,639	$	1.57
$1.71	-	$1.86		523,726		2.58	$	1.80		466,663	$	1.81
$1.99	-	$1.99		1,125,000		4.09	$	1.99		343,750	$	1.99
$2.02	-	$3.13		360,250		1.98	$	2.55		358,062	$	2.55
$3.17	-	$3.17		10,000		2.39	$	3.17		10,000	$	3.17
				2,591,242						1,736,114

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

	Number of Shares
Outstanding September 30, 2018		218,330
Granted		249,300
Released		(156,115	)
Forfeited/cancelled		(36,666	)
Outstanding June 30, 2019		274,849

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

	Nine months ended
	June 30, 2018
Volatility		45.4%
Risk free interest rate		2.2%
Forfeiture rate		10.0%
Dividend yield		0.0%
Expected life in years		4.6%

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Three months ended				Nine months ended
	June 30,				June 30,
	2019		2018		2019		2018
Cost of revenues	$	3,627	$	5,111	$	12,126	$	16,367
Selling, general and administrative		242,660		123,311		508,761		352,766
Research and development		11,279		20,391		42,499		63,930
	$	257,566	$	148,813	$	563,386	$	433,063