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Note 15 - Share-based Compensation (Tables)

12 Months Ended

Sep. 30, 2022

Notes Tables

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

		Years ended
		September 30,
		2022				2021
Volatility			50.8	%			48.5	%
Risk-free interest rate			2.6	%			0.7	%
Dividend yield			0.0	%			0.0	%
Expected term in years			5.2				6.5

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

		Number of Shares				Weighted Average Grant Date Fair Value
Outstanding September 30, 2021			399,469			$	6.27
Granted			260,800			$	3.09
Released			(270,262	)		$	6.42
Forfeited/cancelled			(46,832	)		$	3.57
Outstanding September 30, 2022			343,175			$	4.11

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

		Number of Shares				Weighted Average Exercise Price
Outstanding September 30, 2021			2,745,384			$	3.02
Granted			1,367,000			$	3.78
Forfeited/expired			(26,250	)		$	5.49
Exercised			(145,235	)		$	1.94
Outstanding September 30, 2022			3,940,899			$	3.31
Exerciseable September 30, 2022			1,640,310			$	2.67

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 Term				Price				Exercisable				Price
$1.31		-	$1.86			243,922				1.29			$	1.69				243,922			$	1.69
$1.99		-	$1.99			937,500				1.44			$	1.99				937,500			$	1.99
$3.21		-	$3.21			20,000				6.60			$	3.21				-			$	-
$3.39		-	$3.39			800,000				4.01			$	3.39				-			$	-
$3.40		-	$8.03			1,939,477				6.06			$	4.12				458,888			$	4.59
						3,940,899				4.25			$	3.31				1,640,310			$	2.67

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

		Years ended
		September 30,
		2022				2021
Cost of revenues		$	77			$	40
Selling, general and administrative			2,080				1,344
Research and development			70				40
		$	2,227			$	1,424

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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