Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Statement of Cash Flows [Abstract]
Capital Expenditures Incurred but Not yet Paid	$ 369	$ 148
Payments to Acquire Businesses, Gross	(2,280)	(3,036)
Proceeds from Sale and Maturity of Marketable Securities	(21)	1,969
Operating activities
Net loss	(554)	(3,356)
Adjustments to reconcile loss from operations to net cash used in operating activities
Restructuring, severance and other charges	(62)	818
Payments for restructuring, severance and other charges	(381)	(823)
Legal settlements	0	203
Payments for legal settlements	0	(1,714)
Depreciation	1,059	1,146
Amortization	1,127	2,987
Increase (Decrease) in Deferred Income Taxes	76	0
Share-based compensation	1,400	1,067
Changes in operating assets and liabilities:
Accounts receivable	8,398	104
Inventories	(583)	(237)
Prepaid expense	119	400
Accounts payable	(7,110)	(1,432)
Deferred revenue	(5,748)	(5,503)
Accrued liabilities	(2,582)	2,255
Income taxes payable	59	892
Other changes, net	313	17
Net cash used in operating activities	(224)	(9,504)
Investing activities
Payments to Acquire Productive Assets	0	(3,750)
Payments for Capitalized Software Development	0	282
Payments for (Proceeds from) Life Insurance Policies	0	(119)
Return of investment in marketable securities	0	(10,240)
Net cash used in investing activities	(12,232)	(22,630)
Financing activities
Repurchase of common shares to satisfy employee tax withholding	(435)	(373)
Proceeds from Stock Options Exercised	0	102
Principal payments under long-term obligations	(20)	(23)
Net cash used in financing activities from discontinued operations	(455)	(294)
Net cash used in financing activities	(55)	30
Cash and cash equivalents at beginning of period	62,101	67,168
Cash and Cash Equivalents, Period Increase (Decrease)	(12,966)	(32,398)
Construction in Progress Expenditures Incurred but Not yet Paid	$ 938	$ 3,764
Noncash Investing and Financing Activities Related Text	997	0