Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Current assets:
Cash and cash equivalents	$ 36,429	$ 68,200
Short-term investments	69,845	29,862
Accounts receivable, net of allowances of $1,059 and $1,669	42,052	44,243
Inventories	65,491	59,252
Deferred income taxes	4,375	4,414
Other current assets	11,235	13,472
Current assets of discontinued operations	0	1
Total current assets	229,427	219,444
Net property, plant and equipment	25,493	27,063
Deferred income taxes	582	1,965
Other assets:
Goodwill	15,820	14,522
Intangible assets, net of accumulated amortization of $11,959 and $10,137	33,048	26,309
Other	5,103	4,232
Total other assets	53,971	45,063
Total assets	309,473	293,535
Current liabilities:
Accounts payable	12,917	10,664
Accrued income taxes	745	217
Accrued payroll and other compensation	9,054	8,754
Accrued customer programs	4,042	4,820
Accrued royalties	2,362	2,292
Accrued other expenses	5,885	4,655
Current liabilities of discontinued operations	0	233
Total current liabilities	35,005	31,635
Long-term obligations	4,213	4,684
Commitments and contingencies (Notes 11 and 13)
Stockholders’ equity:
Preferred stock, Class 2, $.01 par, 1,000,000 shares authorized, no shares issued	0	0
Common stock, $.10 par, 25,000,000 shares authorized, 14,703,084 shares issued at March 31, 2015 and 2014	1,470	1,470
Additional paid-in capital	54,399	52,117
Retained earnings	356,467	347,469
Accumulated other comprehensive loss, net of tax	(91)	(19)
Common stock in treasury, 5,359,334 and 5,408,246 shares, at cost	(141,990)	(143,821)
Total stockholders’ equity	270,255	257,216
Total liabilities and stockholders’ equity	$ 309,473	$ 293,535