Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Current assets:
Cash and cash equivalents	$ 78,222	$ 75,727
Marketable securities	32,015	58,382
Accounts receivable, net	28,855	28,685
Inventories	30,238	26,276
Receivable from sale of business	1,998	2,997
Other	3,032	3,578
Total current assets	174,360	195,645
Marketable securities, long-term	4,753	3,541
Property, equipment and improvements, net	12,801	14,041
Identifiable intangible assets, net	11,800	4,041
Goodwill	131,995	109,448
Deferred tax assets	9,211	7,295
Receivable from sale of business	0	1,959
Other	269	196
Total assets	345,189	336,166
Current liabilities:
Accounts payable	6,240	8,569
Accrued compensation	4,325	10,787
Accrued warranty	987	1,033
Accrued professional fees	928	753
Unearned revenue	1,343	361
Accrued restructuring	1,656	0
Other	2,501	2,305
Total current liabilities	17,980	23,808
Income taxes payable	877	1,490
Deferred tax liabilities	534	616
Contingent consideration on acquired business	6,000	9,447
Other non-current liabilities	654	776
Total liabilities	26,045	36,137
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; 33,007,993 and 32,471,175 shares issued	330	325
Additional paid-in capital	245,528	237,492
Retained earnings	150,478	141,112
Accumulated other comprehensive loss	(22,659)	(24,691)
Treasury stock, at cost, 6,436,578 and 6,430,797 shares	(54,533)	(54,209)
Total stockholders’ equity	319,144	300,029
Total liabilities and stockholders’ equity	$ 345,189	$ 336,166