Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021
Current assets:
Cash and cash equivalents	$ 103,911	$ 99,180
Accounts receivable, net of allowance for expected credit losses of $1,002 and $1,220, respectively	22,812	25,732
Contract assets	2,081	2,364
Inventories	1,186	1,177
Prepaid expenses and other current assets	4,837	4,797
Total current assets	134,827	133,250
Property and equipment, net	7,746	8,789
Operating lease right-of-use assets	11,367	12,210
Goodwill	19,622	19,622
Intangible assets, net	8,400	8,400
Deferred income taxes, non-current	1,885	1,802
Other non-current assets	5,638	5,800
Total assets	189,485	189,873
Current liabilities:
Accounts payable	7,388	6,346
Contract liabilities	34,763	38,394
Accrued liabilities	10,148	11,233
Operating lease liabilities, current	4,705	5,009
Finance lease obligations, current	15	19
Total current liabilities	57,019	61,001
Deferred income taxes, non-current	928	923
Operating lease liabilities, non-current	7,868	8,597
Finance lease obligations, non-current	5	6
Other non-current liabilities	4,178	4,011
Commitments and contingencies (see Note 7)
Shareholders' equity:
Common shares, without par value, at $0.30 stated value; 80,000,000 shares authorized; 31,606,831 shares issued; and 24,568,661 and 24,010,727 shares outstanding at June 30, 2021 and March 31, 2021, respectively	9,482	9,482
Treasury shares, 7,038,170 and 7,596,104 at June 30, 2021 and March 31, 2021, respectively	(2,111)	(2,278)
Capital in excess of stated value	40,190	37,257
Retained earnings	36,889	35,376
Accumulated other comprehensive income	37	39
Total shareholders' equity	84,487	79,876
Total liabilities and shareholders' equity	189,485	189,873
Series A Convertible Preferred Stock [Member]
Liabilities Noncurrent:
Series A convertible preferred stock, no par value	$ 35,000	$ 35,459