Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 74,604	$ 46,653
Accounts receivable, net of allowance for expected credit losses of $1,458 and for doubtful accounts of $1,634, respectively	30,494	35,869
Contract assets	2,677	2,125
Inventories	2,760	3,887
Prepaid expenses and other current assets	6,407	4,874
Total current assets	116,942	93,408
Property and equipment, net	11,113	12,230
Operating lease right-of-use assets	13,050	13,829
Goodwill	19,622	19,622
Intangible assets, net	8,400	8,400
Deferred income taxes, non-current	852	764
Other non-current assets	6,124	6,309
Total assets	176,103	154,562
Current liabilities:
Accounts payable	4,439	13,403
Contract liabilities	38,149	42,244
Accrued liabilities	8,801	9,033
Operating lease liabilities, current	4,641	4,719
Finance lease obligations, current	24	24
Total current liabilities	56,054	69,423
Deferred income taxes, non-current	884	880
Operating lease liabilities, non-current	9,810	10,617
Finance lease obligations, non-current	20	25
Other non-current liabilities	2,786	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 23,612,924 and 23,609,398 shares outstanding at June 30, 2020 and March 31, 2020, respectively	9,482	9,482
Treasury shares, 7,993,907 and 7,997,433 at June 30, 2020 and March 31, 2020, respectively	(2,399)	(2,401)
Capital in excess of stated value	6,760	5,491
Retained earnings	57,331	58,984
Accumulated other comprehensive income	176	201
Total shareholders' equity	71,350	71,757
Total liabilities and shareholders' equity	176,103	$ 154,562
Series A Convertible Preferred Stock [Member]
Liabilities Noncurrent:
Series A convertible preferred stock, no par value	$ 35,199