Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Operating activities
Net loss	$ (1,298)	$ (22,783)	$ (55,475)
Less: Income (loss) from discontinued operations	0	(11,456)	32,500
Loss from continuing operations	(1,298)	(34,239)	(22,975)
Adjustments to reconcile loss from continuing operations to net cash used in operating activities
Restructuring, severance and other charges	1,496	15,853	405
Payments for restructuring, severance and other charges	(6,924)	(5,896)	(1,610)
Legal settlements	1,664	0	0
Asset impairments and related charges	120	9,681	959
Depreciation	2,674	4,602	3,914
Amortization	4,207	5,910	7,343
Share-based compensation	2,057	2,896	2,812
Deferred income taxes	(170)	62	4,449
Gain on redemption of corporate-owned life insurance policies	0	(46)	(2,065)
Changes in operating assets and liabilities:
Accounts receivable	(13,252)	(621)	10,256
Inventories	3,462	(4,789)	(859)
Prepaid expense	(1,175)	(121)	(609)
Accounts payable	4,333	5,994	(20,477)
Deferred revenue	(2,617)	4,418	2,865
Accrued liabilities	(4,019)	(24)	(2,499)
Income taxes (receivable) payable	(303)	1,464	7,562
Other changes, net	(960)	157	1,615
Net cash (used in) provided by operating activities from continuing operations	(10,705)	5,301	(8,914)
Net cash (used in) provided by operating activities from discontinued operations	0	(26,999)	23,697
Net cash (used in) provided by operating activities	(10,705)	(21,698)	14,783
Proceeds from sale of marketable securities	4,347	9,237	161
Proceeds from sale of TSG	0	55,840	0
Additional investments in marketable securities	0	(53)	(13,731)
Capital expenditures	(2,940)	(2,335)	(3,427)
Capitalized software development costs	(4,352)	(2,585)	(2,650)
Additional (investments in) proceeds from corporate-owned life insurance policies	(108)	235	14,851
Net cash (used in) provided by investing activities from continuing operations	(3,053)	60,339	(4,796)
Net cash used in investing activities from discontinued operations	0	0	(914)
Net cash (used in) provided by investing activities	(3,053)	60,339	(5,710)
Financing activities
Principal payments under long-term obligations	(666)	(1,001)	(370)
Exercise of employee stock options	67	210	0
Repurchase of common shares to satisfy employee tax withholding	(278)	(1,449)	(238)
Repurchase of common shares	0	(13,173)	0
Proceeds from borrowings under credit facility	0	0	15,235
Principal payments under credit facility	0	0	(15,235)
Net cash used in financing activities from continuing operations	(877)	(15,413)	(608)
Net cash used in financing activities from discontinued operations	0	0	(49)
Net cash used in financing activities	(877)	(15,413)	(657)
Effect of exchange rate changes on cash	(21)	5	403
Cash flows (used in) provided by continuing operations	(14,656)	50,232	(13,915)
Cash flows (used in) provided by discontinued operations	0	(26,999)	22,734
Net (decrease) increase in cash and cash equivalents	(14,656)	23,233	8,819
Cash and cash equivalents at beginning of period	97,587	74,354	65,535
Cash and cash equivalents at end of period	$ 82,931	$ 97,587	$ 74,354