Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Current assets:
Cash and cash equivalents	$ 23,689	$ 25,205
Restricted cash	120	263
Short-term investments	0	3,100
Trade accounts receivable, net of allowance for doubtful accounts of $903 and $1,019 at March 31, 2022 and 2021, respectively	25,628	19,020
Unbilled accounts receivable	10,870	11,541
Inventories	7,980	5,066
Prepaid expenses and other current assets	4,076	5,445
Total current assets	72,363	69,640
Property and equipment, net	1,392	1,923
Right-of-use assets	11,382	11,353
Intangible assets, net	11,780	14,297
Goodwill	28,340	28,340
Other assets	1,120	1,238
Noncurrent assets of discontinued operations	6	78
Total assets	126,383	126,869
Current liabilities:
Trade accounts payable	11,926	8,935
Accrued payroll and related expenses	11,409	11,734
Accrued liabilities	5,623	4,921
Deferred revenue	6,566	7,349
Current liabilities of discontinued operations	163	94
Total current liabilities	35,687	33,033
Lease liabilities	10,763	10,146
Deferred income taxes	337	808
Unrecognized tax benefits	105	119
Other long-term liabilities	2,456	3,523
Noncurrent liabilities of discontinued operations	172	261
Total liabilities	49,520	47,890
Commitments and contingencies (Note 7)
Stockholders' equity:
Preferred stock, $1.00 par value: Authorized shares—2,000 Issued and outstanding shares—0	0	0
Common stock, $0.10 par value: Authorized shares—70,000 at March 31, 2021 and March 31, 2020 Issued and outstanding shares—41,687 at March 31, 2021 and 40,713 at March 31, 2020	4,242	4,170
Additional paid-in capital	186,720	181,828
Accumulated deficit	(114,099)	(107,019)
Total stockholders' equity	76,863	78,979
Total liabilities and stockholders' equity	$ 126,383	$ 126,869