Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 47,694	$ 78,222
Marketable securities	4,763	32,015
Accounts receivable, net	48,246	28,855
Inventories	41,782	30,238
Receivable from sale of business	0	1,998
Other	3,554	3,032
Total current assets	146,039	174,360
Marketable securities, long-term	2,243	4,753
Property, equipment and improvements, net	11,474	12,801
Identifiable intangible assets, net	41,778	11,800
Goodwill	154,565	131,995
Deferred tax assets	3,665	9,211
Other	462	269
Total assets	360,226	345,189
Current liabilities:
Accounts payable	10,849	6,240
Accrued compensation	6,245	4,325
Accrued warranty	1,295	987
Accrued professional fees	1,019	928
Accrued restructuring	666	1,656
Unearned revenue	3,710	1,343
Contingent consideration on acquired businesses	4,440	388
Other	2,270	2,113
Total current liabilities	30,494	17,980
Income taxes payable	699	877
Deferred tax liabilities	422	534
Contingent consideration on acquired businesses	4,581	6,000
Other non-current liabilities	608	654
Total liabilities	36,804	26,045
Contingencies (see Note 12)
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; 33,646,457 and 33,007,993 shares issued	337	330
Additional paid-in capital	253,037	245,528
Retained earnings	148,140	150,478
Accumulated other comprehensive loss	(23,726)	(22,659)
Treasury stock, at cost, 6,403,764 and 6,436,578 shares	(54,366)	(54,533)
Total stockholders' equity	323,422	319,144
Total liabilities and stockholders' equity	$ 360,226	$ 345,189

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Balance Type:	credit
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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.