Condensed Consolidated Balance Sheets - USD ($)	Dec. 31, 2023	Mar. 31, 2023
Current assets:
Cash and cash equivalents	$ 116,200,000	$ 112,842,000
Accounts receivable, net of allowance for expected credit lossesof $763 and $610, respectively	49,366,000	22,378,000
Contract assets	1,971,000	2,242,000
Inventories	6,772,000	9,774,000
Prepaid expenses and other current assets	9,385,000	7,422,000
Total current assets	183,694,000	154,658,000
Property and equipment, net	18,074,000	14,576,000
Operating lease right-of-use assets	18,734,000	12,708,000
Goodwill	33,082,000	32,638,000
Intangible assets, net	17,223,000	18,140,000
Deferred income taxes, non-current	67,999,000	2,790,000
Other non-current assets	7,852,000	7,526,000
Total assets	346,658,000	243,036,000
Accrued liabilities:
Accounts payable	9,012,000	9,418,000
Contract liabilities	62,938,000	52,124,000
Accrued liabilities	15,310,000	13,708,000
Operating lease liabilities, current	3,947,000	3,263,000
Finance lease obligations, current	0	2,000
Total current liabilities	91,207,000	78,515,000
Deferred income taxes, non-current	1,035,000	2,257,000
Operating lease liabilities, non-current	20,200,000	13,477,000
Other non-current liabilities	3,943,000	4,018,000
Commitments and contingencies
Shareholders' equity:
Common shares, without par value, at $0.30 stated value; 80,000,000 shares authorized; 33,342,288 shares issued; and 27,349,322 and 25,326,626 shares outstanding at December 31, 2023 and March 31,2023, respectively	10,003,000	9,482,000
Treasury shares, 5,992,966 and 6,280,205 at December 31, 2023 and March 31, 2023, respectively	(1,798,000)	(1,884,000)
Capital in excess of stated value	91,173,000	52,978,000
Retained earnings	134,794,000	52,764,000
Accumulated other comprehensive loss	(3,899,000)	(4,030,000)
Total shareholders' equity	230,273,000	109,310,000
Total liabilities and shareholders' equity	346,658,000	243,036,000
Series A Convertible Preferred Stock [Member]
Other non-current liabilities:
Series A convertible preferred stock, no par value	$ 0	$ 35,459,000