Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Current assets:
Cash and cash equivalents	$ 71,895	$ 75,727
Marketable securities	36,081	58,382
Accounts receivable, net	28,720	28,685
Inventories	30,519	26,276
Receivable from sale of business	1,978	2,997
Other	4,399	3,578
Total current assets	173,592	195,645
Marketable securities, long-term	2,262	3,541
Property, equipment and improvements, net	13,613	14,041
Identifiable intangible assets, net	13,164	4,041
Goodwill	129,921	109,448
Deferred tax assets	6,974	7,295
Receivable from sale of business	0	1,959
Other	153	196
Total assets	339,679	336,166
Current liabilities:
Accounts payable	10,754	8,569
Income taxes payable	131	167
Accrued compensation	4,198	10,787
Accrued professional fees	1,134	753
Unearned revenue	1,636	361
Contingent consideration on acquired businesses	1,234	513
Other	2,703	2,658
Total current liabilities	21,790	23,808
Income taxes payable	1,380	1,490
Deferred tax liabilities	532	616
Contingent consideration on acquired businesses	8,834	9,447
Other non-current liabilities	740	776
Total liabilities	33,276	36,137
Contingencies (see Note 11)
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; 32,954,369 and 32,471,175 shares issued	330	325
Additional paid-in capital	242,836	237,492
Retained earnings	144,800	141,112
Accumulated other comprehensive loss	(27,175)	(24,691)
Treasury stock, at cost, 6,425,658 and 6,430,797 shares	(54,388)	(54,209)
Total stockholders' equity	306,403	300,029
Total liabilities and stockholders' equity	$ 339,679	$ 336,166