Note 2 - Cash, Cash Equivalents and Marketable Securities (Tables)

9 Months Ended

Oct. 31, 2015

Notes Tables

Cash, Cash Equivalents and Investments [Table Text Block]

	October 31 , 201 5						January 31 , 201 5
	Book Value		Net Unrealized Gains (Losses)		Fair Value		Book Value		Net Unrealized Gains (Losses)			Fair Value
Certificate of deposits	$	15,509	$	-	$	15,509	$	-	$	-		$	-
Corporate bonds		11,205		66		11,271		9,130		153			9,283
Money market funds		5,235		-		5,235		7,650		-			7,650
Fixed income mutual funds		1,259		26		1,285		1,324		(11	)		1,313
Total cash equivalents and marketable securities	$	33,208	$	92		33,300	$	18,104	$	142			18,246
Cash on hand held in the United States						9,455							12,042
Cash on hand held overseas						52,474							63,810
Total cash on hand						61,929							75,852
Total cash, cash equivalents and marketable securities					$	95,229						$	94,098
Reported as:
Cash and cash equivalents					$	67,164						$	83,502
Short-term marketable securities						24,528							6,347
Long-term marketable securities						3,537							4,249
					$	95,229						$	94,098

Investments Classified by Contractual Maturity Date [Table Text Block]

	October 31 , 201 5				January 31 , 201 5
	Book Value		Fair Value		Book Value		Fair Value
Due in one year or less	$	29,669	$	29,763	$	13,995	$	13,997
Due in greater than one year		3,539		3,537		4,109		4,249
Total	$	33,208	$	33,300	$	18,104	$	18,246