Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 85,706	$ 46,653
Accounts receivable, net of allowance for expected credit losses of $1,209 and for doubtful accounts of $1,634, respectively	20,173	35,869
Contract assets	2,475	2,125
Inventories	2,174	3,887
Prepaid expenses and other current assets	5,016	4,874
Total current assets	115,544	93,408
Property and equipment, net	10,108	12,230
Operating lease right-of-use assets	13,023	13,829
Goodwill	19,622	19,622
Intangible assets, net	8,400	8,400
Deferred income taxes, non-current	1,040	764
Other non-current assets	5,977	6,309
Total assets	173,714	154,562
Current liabilities:
Accounts payable	3,176	13,403
Contract liabilities	30,755	42,244
Accrued liabilities	7,185	9,033
Operating lease liabilities, current	4,638	4,719
Finance lease obligations, current	23	24
Total current liabilities	45,777	69,423
Deferred income taxes, non-current	889	880
Operating lease liabilities, non-current	9,923	10,617
Finance lease obligations, non-current	14	25
Other non-current liabilities	3,728	1,860
Commitments and contingencies (see Note 8)
Shareholders' equity:
Common shares, without par value, at $0.30 stated value; 80,000,000 shares authorized; 31,606,831 shares issued; and 23,588,178 and 23,609,398 shares outstanding at September 30, 2020 and March 31, 2020, respectively	9,482	9,482
Treasury shares, 8,018,653 and 7,997,433 at September 30, 2020 and March 31, 2020, respectively	(2,406)	(2,401)
Capital in excess of stated value	8,151	5,491
Retained earnings	62,645	58,984
Accumulated other comprehensive income	52	201
Total shareholders' equity	77,924	71,757
Total liabilities and shareholders' equity	173,714	$ 154,562
Series A Convertible Preferred Stock [Member]
Liabilities Noncurrent:
Series A convertible preferred stock, no par value	$ 35,459