Note 7 - Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details)	9 Months Ended
	Oct. 31, 2016 USD ($)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	$ (8,729,000)
Other comprehensive income	341,000
Amounts reclassified from accumulated other comprehensive loss
Net current period other comprehensive income	341,000
Balance	(8,729,000)
Amounts reclassified from accumulated other comprehensive loss	0
Balance	$ (8,388,000)