INCOME TAXES (Details) (USD $)	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Current:
Federal	$ 684,000	$ 1,669,000	$ 679,000
State	25,000	376,000	268,000
Foreign	2,569,000	3,231,000	2,663,000
Current subtotal	3,278,000	5,276,000	3,610,000
Deferred:
Federal	942,000	889,000	(1,206,000)
State	220,000	21,000	35,000
Foreign	(929,000)	(175,000)	(317,000)
Deferred subtotal	233,000	735,000	(1,488,000)
Equity adjustment	140,000	5,000	721,000
Income Tax Expense (Benefit)	3,651,000	6,016,000	2,843,000
Federal statutory income tax rate (in hundredth)	34.00%
Income Tax Reconciliation [Abstract]
Computed expected tax expense	3,499,000	5,712,000	1,888,000
State income taxes, net of federal income tax expense	208,000	580,000	491,000
Incremental tax benefit from foreign operations	(1,355,000)	(1,945,000)	(1,474,000)
Non-deductible equity compensation	913,000	898,000	335,000
Foreign withholding taxes	928,000	981,000	776,000
Net change in valuation allowance	(826,000)	(336,000)	99,000
Net change in contingency reserve	(68,000)	147,000	91,000
Non-deductible expenses	296,000	354,000	969,000
Benefit of tax credits	(446,000)	(1,437,000)	(456,000)
Subpart F Income	313,000	784,000	383,000
Rate change impact	164,000	(61,000)	20,000
Other	25,000	339,000	(279,000)
Income Tax Expense (Benefit)	3,651,000	6,016,000	2,843,000
Consolidated U.S. income (loss) before income taxes	2,300,000	4,400,000	(2,800,000)
Income before income taxes for foreign operations	8,000,000	12,400,000	8,400,000
Permanently reinvested earnings of foreign subsidiaries	61,700,000
Deferred Tax Assets [Abstract]
Allowance for doubtful accounts and sales adjustments	689,000	713,000
Accrued vacation	1,946,000	1,850,000
Tax credit	8,417,000	7,455,000
Deferred revenue	4,135,000	5,607,000
Net operating loss carry forwards	12,011,000	12,066,000
Accrued expenses - other	1,906,000	1,751,000
Section 263(a) interest capitalization	385,000	395,000
Equity compensation	4,856,000	5,338,000
Other	1,176,000	1,165,000
Total deferred tax assets	35,521,000	36,340,000
Less valuation allowance	(10,417,000)	(11,008,000)
Deferred tax assets, net of valuation allowance	25,104,000	25,332,000
Deferred Tax Liabilities [Abstract]
Unrecognized capital gain	944,000	914,000
Depreciation and amortization	1,352,000	(352,000)
Other comprehensive income	1,507,000	2,823,000
Other	456,000	307,000
Deferred tax liabilities, gross, total	4,259,000	3,692,000
Total net deferred tax assets	20,845,000	21,640,000
Current portion of deferred tax asset, net	4,426,000	4,430,000
Non-current portion of deferred tax asset, net	17,301,000	17,969,000
Current portion of deferred tax liabilities (in current deferred tax assets)	(12,000)	(75,000)
Non-current portion of deferred tax liabilities (in non-current deferred tax assets)	(870,000)	(684,000)
Tax benefit realized from exercise of stock options	1,100,000	1,000,000
Excess tax benefits realized	100,000
Future increase in equity related to excess tax benefits	1,100,000
Net operating loss carryforwards	44,500,000
Tax credit carryforwards	10,400,000
Decrease in 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	2,649,000	2,502,000
Increases as a result of tax positions taken in a prior period	42,000	258,000
Increases as a result of tax positions taken in the current period	39,000	69,000
Reduction as a result of a lapse of the statute of limitations	(130,000)	(180,000)
Decreases as a result of tax settlements	(19,000)	0
Unrecognized tax benefit at end of year	2,581,000	2,649,000	2,502,000
Income Tax Contingency [Line Items]
Income tax penalties and interest expense	33,000
Income tax penalties and interest accrued	300,000
Unrecognized tax benefits recognized in next twelve months	$ 200,000
U.S. Federal [Member]
Income Tax Contingency [Line Items]
Open tax years	FY10 and beyond
California [Member]
Income Tax Contingency [Line Items]
Open tax years	FY09 and beyond
Michigan [Member]
Income Tax Contingency [Line Items]
Open tax years	FY09 and beyond
New Jersey [Member]
Income Tax Contingency [Line Items]
Open tax years	FY09 and beyond
Australia [Member]
Income Tax Contingency [Line Items]
Open tax years	FY09 and beyond
France [Member]
Income Tax Contingency [Line Items]
Open tax years	FY10 and beyond
Ireland [Member]
Income Tax Contingency [Line Items]
Open tax years	FY09 and beyond
United Kingdom [Member]
Income Tax Contingency [Line Items]
Open tax years	FY10 and beyond
India [Member]
Income Tax Contingency [Line Items]
Open tax years	FY98 and beyond