Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Operating activities
Net loss	$ (1,628)	$ (5,805)
Income from discontinued operations	0	(10,403)
Loss from continuing operations	(1,628)	(16,208)
Adjustments to reconcile loss from continuing operations to net cash used in operating activities
Restructuring, severance and other charges	1,524	10,590
Payments and settlements for restructuring	(6,550)	(3,916)
Asset impairments and related charges	208	0
Depreciation	2,024	3,177
Amortization	3,304	4,757
Share-based compensation	1,274	2,350
Changes in operating assets and liabilities:
Accounts receivable	(19,369)	1,746
Inventories	(2,479)	(773)
Accounts payable	16,610	2,771
Deferred revenue	(4,673)	(10,677)
Accrued liabilities	(7,071)	(4,846)
Income taxes receivable	319	(1,635)
Other charges, net	(243)	(375)
Net cash used in operating activities from continuing operations	(17,388)	(9,769)
Net cash used in operating activities from discontinued operations	0	(27,923)
Net cash used in operating activities	(17,388)	(37,692)
Investing activities
Proceed from sale of TSG	0	59,470
Proceeds from sale of marketable securities	4,347	5,025
Payments to Acquire Marketable Securities	0	(40,039)
Payments for (Proceeds from) Life Insurance Policies	(85)	235
Capital expenditures	(4,051)	(3,089)
Net cash provided by investing activities from continuing operations	211	21,602
Net cash provided by investing activities from discontinued operations	0	0
Net cash provided by investing activities	211	21,602
Financing activities
Principal payments under long-term obligations	(545)	(823)
Exercise of employee stock options	67	210
Repurchase of common shares to satisfy employee tax withholding	(148)	(1,328)
Repurchase of common shares	0	(12,127)
Net cash used in financing activities from continuing operations	(626)	(14,068)
Net cash used in financing activities from discontinued operations	0	0
Net cash used in financing activities	(626)	(14,068)
Effect of exchange rate changes on cash	54	(135)
Cash flows used in continuing operations	(17,749)	(2,370)
Cash flows used in discontinued operations	0	(27,923)
Net decrease in cash and cash equivalents	(17,749)	(30,293)
Cash and cash equivalents at beginning of period	97,587	74,354
Cash and cash equivalents at end of period	$ 79,838	$ 44,061