Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Cash flows from operating activities:
Net loss	$ (3,030)	$ (19,165)	$ (4,014)
Net loss from discontinued operations	803	16,366	611
Adjustments to reconcile net loss to net cash provided by continuing operating activities:
Depreciation of property and equipment	4,389	4,671	5,435
Amortization of intangible assets	4,630	6,395	6,271
Impairment of long-lived asset		967	1,092
Loss (gain) on sale of investment in affiliates	363	(885)
Stock-based compensation expense	2,959	5,929	2,988
Deferred income taxes	(684)	(132)	6,599
Change in contingent consideration related to acquisitions	(60)	2,435	3,312
Other	495	79	669
Changes in operating assets and liabilities:
Accounts receivable	5,420	1,676	(409)
Unbilled receivables	(5,251)	4,637	(1,255)
Inventories	(234)	2,563	(852)
Prepaid expenses and other assets	6,724	(5,045)	(4,510)
Accounts payable	(873)	(236)	(2,596)
Accrued expenses	1,080	(347)	3,612
Customer deposits	(4,226)	1,777	(926)
Deferred revenues	(4,877)	(6,283)	(3,839)
Other	539	568	519
Net cash provided by operating activities from continuing operations	8,167	15,970	12,707
Net cash (used in) provided by operating activities from discontinued operations	(803)	1,387	1,672
Total cash provided by operating activities	7,364	17,357	14,379
Cash flows from investing activities:
Purchases of property and equipment	(2,315)	(3,972)	(1,512)
Purchases of marketable securities	(11,479)	(15,642)	(19,944)
Proceeds from sale and maturity of marketable securities	12,237	14,214	19,523
Additional proceeds from sale of equity investment	1,128	885
Acquisition of businesses and payment of contingent consideration, net of cash acquired	(4,009)	(8,175)	(4,935)
Decrease in restricted cash	938	262	132
Other	20	190
Net cash used in investing activities from continuing operations	(3,480)	(12,238)	(6,736)
Net cash provided by (used in) investing activities from discontinued operations	4,000	25,232	(1,891)
Total cash provided by (used in) investing activities	520	12,994	(8,627)
Cash flows from financing activities:
Repurchases of our common stock		(6,200)
Proceeds from issuance of common stock relating to stock option exercises	1,058	2,191	1,787
Total cash provided by (used in) financing activities	1,058	(4,009)	1,787
Effect of exchange rate changes on cash	71	(206)	(99)
Net increase in cash and cash equivalents	9,013	26,136	7,440
Cash and cash equivalents, beginning of period	106,721	80,585	73,145
Cash and cash equivalents, end of period	115,734	106,721	80,585
Supplemental disclosure of cash flow information:
Income taxes paid	2,606	1,312	565
Interest paid	4	89
Supplemental disclosure of non-cash activities:
Transfer of items originally classified as inventories to equipment	1,110	897	1,402
Issuance of common stock for settlement of contingent consideration related to acquisitions	1,560
Asset held for sale reclassified to asset held for use and reclassified from current assets to property and equipment	$ 465