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Note 16 - Share-based Compensation (Tables)

6 Months Ended

Mar. 31, 2021

Notes Tables

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

		Six months ended
		March 31,
		2021				2020
Volatility			48.5%				44.5%
Risk-free interest rate			0.6%				1.4%
Dividend yield			0.0%				0.0%
Expected term			6.8				5.4

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

		Number of Shares				Weighted Average Grant Date Fair Value
Outstanding September 30, 2020			303,014			$	2.82
Granted			246,565			$	7.68
Released			(223,633	)		$	2.78
Forfeited/cancelled			(277	)		$	2.26
Outstanding March 31, 2021			325,669			$	6.53

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

		Number of Shares				Weighted Average Exercise Price
Outstanding September 30, 2020			2,659,305			$	2.56
Granted			245,000			$	7.01
Forfeited/expired			(94,125	)		$	1.99
Exercised			(86,462	)		$	1.97
Outstanding March 31, 2021			2,723,718			$	3.00
Exerciseable March 31, 2021			1,480,606			$	2.14

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	-	$1.86			334,991				2.50			$	1.64				321,241			$	1.64
$1.99	-	$1.99			937,500				2.94			$	1.99				937,500			$	1.99
$2.16	-	$3.17			72,500				0.85			$	2.52				72,500			$	2.52
$3.39	-	$3.40			1,133,727				5.59			$	3.39				125,147			$	3.40
$6.87	-	$8.03			245,000				6.71			$	7.01				24,218			$	6.87
					2,723,718				4.27			$	3.00				1,480,606			$	2.14

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

		Three months ended								Six months ended
		March 31,								March 31,
		2021				2020				2021				2020
Cost of revenues		$	9			$	7			$	15			$	11
Selling, general and administrative			309				283				479				427
Research and development			10				6				16				16
		$	328			$	296			$	510			$	454

X

- Definition

Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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