STOCK OPTIONS AND RESTRICTED SHARES (Tables)

12 Months Ended

Mar. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-based Compensation

The following amounts of stock-based compensation expense for restricted shares and options were recorded (dollars in thousands):

	Fiscal Year Ended March 31,
	2022		2021		2020
Cost of product revenue	$	5	$	4	$	3
Cost of service revenue		—		—		(1	)
General and administrative		793		716		576
Sales and marketing		12		29		38
Research and development		3		4		2
	$	813	$	753	$	618

Summary of Outstanding Stock Options

The following table summarizes information with respect to outstanding stock options:

	Number of Shares			Weighted Average Exercise Price
Outstanding at March 31, 2019		467,836		$	3.14
Granted		—		$	—
Exercised		(22,362	)	$	2.51
Forfeited		(49,174	)	$	4.63
Outstanding at March 31, 2020		396,300		$	2.80
Granted		—		$	—
Exercised		(99,000	)	$	2.34
Forfeited		(100,982	)	$	3.39
Outstanding at March 31, 2021		196,318		$	2.74
Granted		—		$	—
Exercised		(31,845	)	$	3.79
Forfeited		(22,045	)	$	4.19
Outstanding at March 31, 2022		142,428		$	2.28
Exercisable at March 31, 2022		142,428

Schedule of Range of Exercise Prices

The following table summarizes the range of exercise prices on outstanding stock options at March 31, 2022:

	March 31, 2022
	Outstanding and Vested		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price
$2.00 - 2.03		57,292		0.21	$	2.03
$2.41 - 2.75		85,136		1.02		2.45
		142,428		0.62	$	2.28

Summary of Restricted Shares

The following table summarizes information with respect to restricted shares activity:

	Fiscal Year Ended March 31,
	2022			2021			2020
Balance at March 31, 2021		469,639			772,720			1,312,593
Shares issued		240,833			287,998			279,468
Shares vested		(260,014	)		(450,481	)		(669,238	)
Shares forfeited		—			(140,598	)		(150,103	)
Shares outstanding at March 31, 2022		450,458			469,639			772,720
Per share price on grant date	$3.62 - 5.98			$3.92 - 10.01			$2.69 - 3.03

Schedule of Unrecognized Compensation Cost Related to Non-vested Awards

Unrecognized compensation cost related to non-vested common stock-based compensation as of March 31, 2022 is expected to be recognized as follows (dollars in thousands):

Fiscal 2023	$	799
Fiscal 2024		532
Fiscal 2025		126
Fiscal 2026		4
Thereafter		3
Total	$	1,464
Remaining weighted average expected term	3.0 years