Note 3 Business Combination (Tables)

6 Months Ended

Sep. 30, 2013

Business Combinations [Abstract]

Schedule of Business Combination Recognized Identifiable Assets Acquired, Goodwill and Liabilities Assumed, Net [Table Text Block]

		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

Business Acquisition, Pro Forma Information [Table Text Block]

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2013		2012		2013		2012
	(unaudited)				(unaudited)
Pro forma net revenues	$	85,901	$	91,127	$	180,985	$	193,814
Pro forma net income	$	5,721	$	4,059	$	10,156	$	11,860
Pro forma net income per share (basic)	$	0.18	$	0.13	$	0.33	$	0.38
Pro forma net income per share (diluted)	$	0.18	$	0.13	$	0.32	$	0.37