Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2016
Revenues:
Products		$ 28,791	$ 18,205	$ 21,896
Services		51,476	65,590	85,096
Total revenues		80,267	83,795	106,992
Cost of revenues:
Products		3,942	6,453	6,013
Services		22,001	35,740	44,159
(Recovery on) provision for loss contract		(593)	(4,118)	9,162
Amortization of intangible assets		970	1,283	739
Stock-based compensation expense		3	132	80
Total cost of revenues		26,323	39,490	60,153
Gross profit		53,944	44,305	46,839
Operating expenses:
Research and development		23,162	30,093	33,696
Selling and marketing		12,614	16,158	15,197
General and administrative		14,671	16,173	15,470
Amortization of intangible assets		1,453	2,019	4,041
Stock-based compensation expense		2,693	2,489	3,472
Change in fair value of earn-outs			249
Professional fees - other		21	347	637
Severance and other restructuring costs		4,740	7,151	1,061
Loss on impairment of long-lived assets			23,772	21,464
Total operating expenses		59,354	98,451	95,038
Loss from operations		(5,410)	(54,146)	(48,199)
Other income (expenses), net		4,081	(1,972)	(523)
Gain (loss) on investment in affiliates		2,555	(500)	(31)
Income (loss) from operations before income taxes and equity income in earnings of affiliates		1,226	(56,618)	(48,753)
Income tax (benefit) provision		(12,272)	14,631	(1,029)
Equity income in earnings of affiliates, net of tax				27
Net income (loss)		13,498	(71,249)	(47,697)
Net income (loss)		13,498	(71,249)	(47,697)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment		(3)	1,267	(847)
Unrealized loss on marketable securities	[1]	(60)	(25)	(12)
Comprehensive income (loss)		$ 13,435	$ (70,007)	$ (48,556)
Net loss per share:
Basic		$ 0.38	$ (2.04)	$ (1.42)
Diluted		$ 0.38	$ (2.04)	$ (1.42)
Weighted average common shares outstanding:
Basic		35,412	34,970	33,506
Diluted		35,685	34,970	33,506

[1] Tax amounts for all periods were not significant