Organization and Significant Accounting Policies (Tables)

12 Months Ended

Apr. 30, 2014

Organization and Significant Accounting Policies

Schedule of estimated useful lives of property and equipment

Machinery and equipment	2 to 7 years
Computer equipment and software	2 to 5 years
Furniture and fixtures	3 to 7 years
Leasehold improvements	Lesser of useful life or term of lease

Schedule of reconciliation of basic to diluted shares

	Year Ended April 30,
	2014		2013		2012
Numerator for basic earnings per share:
Net income	$	13,718,000	$	10,426,000	$	30,451,000
Denominator for basic earnings per share:
Weighted average common shares		22,354,444		22,069,842		21,783,496
Dilutive effect of employee stock options, restricted stock and restricted stock units		364,774		320,578		531,978
Denominator for diluted earnings per share		22,719,218		22,390,420		22,315,474