Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017
Current Assets:
Cash and cash equivalents	$ 27,712	$ 16,534
Restricted cash	350
Available-for-sale securities	38,330	31,802
Accounts receivable, net of allowance for doubtful accounts of $160 and $230 as of March 31, 2018 and September 30, 2017, respectively	7,216	7,211
Inventories, net	4,046	3,516
Income tax receivable	1,345	599
Prepaids and other	2,342	1,221
Total Current Assets	81,341	60,883
Available-for-sale securities	3,953
Deferred tax assets	3,326	4,027
Property and equipment, net	25,844	22,942
Intangible assets, net	19,725	20,562
Goodwill	27,933	27,282
Other assets	1,197	897
Total Assets	163,319	136,593
Current Liabilities:
Accounts payable	2,012	2,396
Accrued liabilities:
Compensation	3,859	3,822
Accrued other	4,022	1,773
Deferred revenue	12,097	62
Contingent consideration	12,235	1,750
Total Current Liabilities	34,225	9,803
Contingent consideration, less current portion	1,110	13,114
Deferred revenue, less current portion	12,710	181
Other long-term liabilities	1,918	1,938
Total Liabilities	49,963	25,036
Commitments and Contingencies (Note 16)
Stockholders’ Equity:
Series A Preferred stock- $.05 par value, 450,000 shares authorized; no shares issued and outstanding
Common stock- $.05 par value, 45,000,000 shares authorized; 13,247,068 and 13,094,988 shares issued and outstanding as of March 31, 2018 and September 30, 2017, respectively	662	655
Additional paid-in capital	5,431	5,413
Accumulated other comprehensive income	5,213	3,417
Retained earnings	102,050	102,072
Total Stockholders’ Equity	113,356	111,557
Total Liabilities and Stockholders’ Equity	$ 163,319	$ 136,593

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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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.