Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022
Current assets:
Cash and cash equivalents	$ 96,196	$ 96,971
Accounts receivable, net of allowance for expected credit losses of $452 and $318, respectively	21,030	25,175
Contract assets	3,712	1,669
Inventories	9,659	6,940
Prepaid expenses and other current assets	5,830	5,418
Total current assets	136,427	136,173
Property and equipment, net	6,288	6,345
Operating lease right-of-use assets	15,715	9,889
Goodwill	32,759	32,759
Intangible assets, net	19,492	20,178
Deferred income taxes, non-current	2,789	2,664
Other non-current assets	7,296	6,154
Total assets	220,766	214,162
Accrued liabilities:
Accounts payable	10,428	9,766
Contract liabilities	37,560	46,095
Accrued liabilities	9,959	10,552
Operating lease liabilities, current	4,104	5,049
Finance lease obligations, current	3	4
Total current liabilities	62,054	71,466
Deferred income taxes, non-current	948	938
Operating lease liabilities, non-current	11,882	5,649
Finance lease obligations, non-current	0	2
Other non-current liabilities	3,829	3,304
Commitments and contingencies
Shareholders' equity:
Common shares, without par value, at $0.30 stated value; 80,000,000 shares authorized; 31,606,831 shares issued; and 25,058,198 and 24,728,532 shares outstanding at September 30, 2022 and March 31, 2022, respectively	9,482	9,482
Treasury shares, 6,548,633 and 6,878,299 at September 30, 2022 and March 31, 2022, respectively	(1,965)	(2,063)
Capital in excess of stated value	54,072	49,963
Retained earnings	45,715	40,018
Accumulated other comprehensive loss	(710)	(56)
Total shareholders' equity	106,594	97,344
Total liabilities and shareholders' equity	220,766	214,162
Series A Convertible Preferred Stock [Member]
Other non-current liabilities:
Series A convertible preferred stock, no par value	$ 35,459	$ 35,459