Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Current assets:
Cash and cash equivalents	$ 75,727	$ 45,018
Marketable securities	58,382	47,191
Accounts receivable, net	28,685	27,788
Inventories	26,276	31,877
Deferred tax assets	0	3,252
Receivable from sale of business	2,997	0
Other	3,578	3,435
Current assets of discontinued operations	0	1,624
Total current assets	195,645	160,185
Marketable securities, long-term	3,541	13,626
Property, equipment and improvements, net	14,041	14,339
Identifiable intangible assets, net	4,041	2,648
Goodwill	109,448	100,183
Deferred tax assets	7,295	6,255
Receivable from sale of business	1,959	0
Other	196	250
Non-current assets of discontinued operations	0	2,874
Total assets	336,166	300,360
Current liabilities:
Accounts payable	8,569	6,673
Income taxes payable	167	828
Accrued compensation	10,787	10,156
Accrued warranty	1,033	1,014
Contingent consideration on acquired business	513	0
Other	2,739	3,037
Current liabilities of discontinued operations	0	1,481
Total current liabilities	23,808	23,189
Income taxes payable	1,490	1,546
Deferred tax liabilities	616	135
Contingent consideration on acquired business	9,447	0
Other non-current liabilities	776	457
Non-current liabilities of discontinued operations	0	95
Total liabilities	36,137	25,422
Commitments and Contingencies (see Notes 16 & 17)
Stockholders’ equity:
Preferred stock, $.01 par value; 2,000,000 shares authorized; none issued and outstanding	0	0
Common stock, $.01 par value; 60,000,000 shares authorized; 32,471,175 and 31,534,198 shares issued	325	315
Additional paid-in capital	237,492	227,367
Retained earnings	141,112	124,404
Accumulated other comprehensive loss	(24,691)	(22,613)
Treasury stock, at cost, 6,430,797 and 6,487,248 shares	(54,209)	(54,535)
Total stockholders’ equity	300,029	274,938
Total liabilities and stockholders’ equity	$ 336,166	$ 300,360