Note 3 - Business Combinations (Tables)

12 Months Ended

Mar. 31, 2016

Notes Tables

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

	Purchase Consideration Allocation
Cash, restricted cash and cash equivalents	$	196
Accounts receivable		1,497
Inventories		534
Property, plant and equipment		24
Prepaid expenses and other current assets		547
Identifiable intangible assets		2,867
Short-term borrowings		(2,354	)
Accounts payable		(614	)
Accruals and other liabilities		(1,926	)
Total identifiable net liabilities		771
Goodwill		14,887
Total purchase consideration	$	15,658

	Purchase Price Allocation
Inventories	$	800
Property, plant and equipment		36
Identifiable intangible assets		24,000
Total identifiable net assets		24,836
Goodwill		25,164
Total purchase price	$	50,000

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

				Estimated
	Fair Value		Amortization	Useful Life
	(In thousands)		Method	(In months)
Developed intellectual property	$	1,005	Accelerated		60
In-process research and development expenses (1)		1,188	Straight-line		60
Customer relationships		500	Accelerated		36
Contract backlog		174	Straight-line		6
Total	$	2,867

Business Acquisition, Pro Forma Information [Table Text Block]

	Years Ended
	March 31, 2014
	(unaudited)
Pro forma net revenues	$	360,228
Pro forma net income	$	15,364
Pro forma net income per share (basic)	$	0.49
Pro forma net income per share (diluted)	$	0.48