Note 16 - Income Taxes (Tables)

12 Months Ended

Mar. 31, 2016

Notes Tables

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	Year Ended March 31,
	2016		2015		2014
Domestic	$	9,030	$	3,390	$	7,104
International		14,459		27,040		6,355
	$	23,489	$	30,430	$	13,459

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Year Ended March 31,
Current:	2016		2015		2014
Federal	$	1,418	$	201	$	4,804
State		126		83		73
Foreign		3,436		5,066		3,087
		4,980		5,350		7,964
Deferred:
Federal		3,554		945		183
State		189		20		86
Foreign		25		375		(820	)
		3,768		1,340		(551	)
Total income tax provision	$	8,748	$	6,690	$	7,413

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year Ended March 31,
	2016			2015			2014
		(%)			(%)			(%)
Statutory federal income tax rate		35			35			35
State taxes, net of federal tax benefit		1			1			1
Expense (benefit) of lower-tax foreign jurisdictions		(10	)		(15	)		-
Research and development tax credits		(3	)		(1	)		(1	)
Valuation allowance		3			-			2
Permanent items		(5	)		-			3
Tax reserves		-			-			2
Tax asset write off		10			-			-
Tax assessment		-			-			1
Foreign income		6			2			12
Effective tax provision rate		37			22			55

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	March 31,
	2016			2015
Deferred tax assets:
Reserves and allowances	$	6,018		$	5,612
Other liabilities and accruals		6,176			5,929
Depreciable assets		83			2,951
Net operating loss carryforward		11,675			13,993
Share-based compensation		5,098			4,971
Credits carryforward		2,440			2,403
Total deferred tax assets		31,490			35,859
Less: Valuation allowance and other reserves		(3,466	)		(3,902	)
Net deferred tax asset	$	28,024		$	31,957

Summary of Income Tax Contingencies [Table Text Block]

Balance as of March 31, 2013	$	6,736
Lapse of statute of limitations		(941	)
Increases in balances related to tax positions taken during prior periods		499
Increases in balances related to tax positions taken during the current period		684
Balance as of March 31, 2014		6,978
Lapse of statute of limitations		(3,070	)
Increases in balances related to tax positions taken during prior periods		213
Increases in balances related to tax positions taken during the current period		2,831
Balance as of March 31, 2015		6,952
Lapse of statute of limitations		(772	)
Increases in balances related to tax positions taken during prior periods		129
Increases in balances related to tax positions taken during the current period		637
Balance as of March 31, 2016	$	6,946