Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Mar. 31, 2021
Current assets:
Cash and cash equivalents	$ 106,389	$ 99,180
Accounts receivable, net of allowance for expected credit losses of $666 and $1,220, respectively	19,269	25,732
Contract assets	1,846	2,364
Inventories	1,881	1,177
Prepaid expenses and other current assets	4,838	4,797
Total current assets	134,223	133,250
Property and equipment, net	7,372	8,789
Operating lease right-of-use assets	10,495	12,210
Goodwill	19,622	19,622
Intangible assets, net	8,400	8,400
Deferred income taxes, non-current	2,090	1,802
Other non-current assets	5,898	5,800
Total assets	188,100	189,873
Current liabilities:
Accounts payable	9,009	6,346
Contract liabilities	30,640	38,394
Accrued liabilities	8,215	11,233
Operating lease liabilities, current	4,325	5,009
Finance lease obligations, current	10	19
Total current liabilities	52,199	61,001
Deferred income taxes, non-current	933	923
Operating lease liabilities, non-current	7,331	8,597
Finance lease obligations, non-current	4	6
Other non-current liabilities	4,456	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 24,607,173 and 24,010,727 shares outstanding at September 30, 2021 and March 31, 2021, respectively	9,482	9,482
Treasury shares, 6,999,658 and 7,596,104 at September 30, 2021 and March 31, 2021, respectively	(2,100)	(2,278)
Capital in excess of stated value	42,867	37,257
Retained earnings	37,412	35,376
Accumulated other comprehensive income	57	39
Total shareholders' equity	87,718	79,876
Total liabilities and shareholders' equity	188,100	189,873
Series A Convertible Preferred Stock [Member]
Liabilities Noncurrent:
Series A convertible preferred stock, no par value	$ 35,459	$ 35,459