Earnings per Share and Stock Plans (Tables)

9 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

		Three months ended				Nine Months Ended
		December 31, 2012		December 31, 2011		December 31, 2012		December 30, 2011
Numerator for basic and diluted earnings per share:
Net income	$	9,579	$	8,515	$	26,267	$	17,970
Denominators:
Weighted-average common stock outstanding – denominator for basic EPS		19,451		19,313		19,406		19,256
Effect of dilutive employee stock options and other share-based awards		246		175		214		270
Adjusted weighted-average common stock outstanding and assumed conversions – denominator for diluted EPS		19,697		19,488		19,620		19,526