INCOME TAXES (Details) (USD $)	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Current:
Federal	$ 303,000	$ 684,000	$ 1,669,000
State	33,000	25,000	376,000
Foreign	2,703,000	2,569,000	3,231,000
Current subtotal	3,039,000	3,278,000	5,276,000
Deferred:
Federal	20,000	942,000	889,000
State	306,000	220,000	21,000
Foreign	297,000	(929,000)	(175,000)
Deferred subtotal	623,000	233,000	735,000
Equity adjustment	104,000	140,000	5,000
Income Tax Expense (Benefit)	3,766,000	3,651,000	6,016,000
Federal statutory income tax rate (in hundredth)	34.00%
Income Tax Reconciliation [Abstract]
Computed expected tax expense	3,452,000	3,499,000	5,712,000
State income taxes, net of federal income tax expense	330,000	208,000	580,000
Incremental tax benefit from foreign operations	(2,676,000)	(1,355,000)	(1,945,000)
Non-deductible equity compensation	1,176,000	913,000	898,000
Foreign withholding taxes	1,171,000	928,000	981,000
Net change in valuation allowance	(108,000)	(826,000)	(336,000)
Net change in contingency reserve	45,000	(68,000)	147,000
Non-deductible expenses	1,084,000	296,000	354,000
Benefit of tax credits	(1,624,000)	(446,000)	(1,437,000)
Subpart F Income	198,000	313,000	784,000
Rate change impact	(88,000)	164,000	(61,000)
Other	806,000	25,000	339,000
Income Tax Expense (Benefit)	3,766,000	3,651,000	6,016,000
Consolidated U.S. income (loss) before income taxes	(1,200,000)	2,300,000	4,400,000
Income before income taxes for foreign operations	11,400,000	8,000,000	12,400,000
Permanently reinvested earnings of foreign subsidiaries	67,000,000
Deferred Tax Assets [Abstract]
Allowance for doubtful accounts and sales adjustments	492,000	689,000
Accrued vacation	1,923,000	1,946,000
Tax credits	7,911,000	8,417,000
Deferred revenue	3,467,000	4,135,000
Net operating loss carry forwards	10,608,000	12,011,000
Accrued expenses - other	2,076,000	1,906,000
Section 263(a) interest capitalization	368,000	385,000
Equity compensation	4,306,000	4,856,000
Other	1,423,000	1,176,000
Total deferred tax assets	32,574,000	35,521,000
Less valuation allowance	(10,293,000)	(10,417,000)
Deferred tax assets, net of valuation allowance	22,281,000	25,104,000
Deferred Tax Liabilities [Abstract]
Unrecognized capital gain	1,033,000	944,000
Depreciation and amortization	654,000	1,352,000
Other comprehensive income	295,000	1,507,000
Other	378,000	456,000
Total deferred tax liabilities	2,360,000	4,259,000
Total net deferred tax assets	19,921,000	20,845,000
Current portion of deferred tax asset, net	8,242,000	4,426,000
Non-current portion of deferred tax asset, net	13,110,000	17,301,000
Current portion of deferred tax liabilities (in current deferred tax assets)	(109,000)	(12,000)
Non-current portion of deferred tax liabilities (in non-current deferred tax assets)	(1,322,000)	(870,000)
Tax benefit realized from exercise of stock options	1,200,000	1,100,000
Excess tax benefits realized	100,000
Future increase in equity related to excess tax benefits	1,200,000
Net operating loss carryforwards	39,100,000
Tax credit carryforwards	9,900,000
Increase in reserves for uncertain tax position	100,000
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at beginning of the year	2,581,000	2,649,000
Increases as a result of tax positions taken in a prior period	45,000	42,000
Increases as a result of tax positions taken in the current period	0	39,000
Reduction as a result of a lapse of the statute of limitations	0	(130,000)
Decreases as a result of tax settlements	0	(19,000)
Unrecognized tax benefit at end of year	2,626,000	2,581,000	2,649,000
Income Tax Contingency [Line Items]
Income tax penalties and interest expense	100,000
Unrecognized tax benefits, income tax penalties and interest accrued	200,000
Unrecognized tax benefits recognized in next twelve months	$ 800,000
U.S. Federal [Member]
Income Tax Contingency [Line Items]
Years in which the company is currently under audit	FY11 and beyond
California [Member]
Income Tax Contingency [Line Items]
Years in which the company is currently under audit	FY10 and beyond
Michigan [Member]
Income Tax Contingency [Line Items]
Years in which the company is currently under audit	FY10 and beyond
New Jersey [Member]
Income Tax Contingency [Line Items]
Years in which the company is currently under audit	FY10 and beyond
Australia [Member]
Income Tax Contingency [Line Items]
Years in which the company is currently under audit	FY10 and beyond
France [Member]
Income Tax Contingency [Line Items]
Years in which the company is currently under audit	FY11 and beyond
India [Member]
Income Tax Contingency [Line Items]
Years in which the company is currently under audit	FY98 and beyond
Ireland [Member]
Income Tax Contingency [Line Items]
Years in which the company is currently under audit	FY10 and beyond
United Kingdom [Member]
Income Tax Contingency [Line Items]
Years in which the company is currently under audit	FY11 and beyond