CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 58,104	$ 50,138
Restricted cash	14,055	14,822
Trading securities	0	40,020
Held-to-maturity investments, current portion	0	7,759
Receivables, net	21,106	15,197
Notes receivable, current portion	5,183	0
Prepaid expenses	10,320	9,495
Other current assets	8,027	9,395
Total current assets	116,795	146,826
Property and equipment, net	114,848	106,664
Goodwill	8,222	9,005
Notes receivable, less current portion	31,194	0
Other assets	11,219	11,607
Total assets	282,278	274,102
Current liabilities:
Accounts payable and accrued expenses	46,617	37,481
Deferred revenue	38,236	41,338
Accrued tool sets	2,397	2,764
Financing obligation, current	1,319	1,106
Income tax payable	0	490
Other current liabilities	3,893	3,210
Total current liabilities	92,462	86,389
Deferred tax liabilities, net	329	3,141
Deferred rent liability	12,003	6,887
Financing obligation	40,715	42,035
Other liabilities	10,124	9,874
Total liabilities	155,633	148,326
Commitments and contingencies (Note 13)
Shareholders' equity:
Common stock, $0.0001 par value, 100,000,000 shares authorized, 32,168,795 shares issued and 25,303,898 shares outstanding as of September 30, 2018 and 31,872,433 shares issued and 25,007,536 shares outstanding as of September 30, 2017	3	3
Preferred stock, $0.0001 par value, 10,000,000 shares authorized; 700,000 shares of Series A Convertible Preferred Stock issued and outstanding as of September 30, 2018 and September 30, 2017, liquidation preference of $100 per share	0	0
Paid-in capital - common	186,732	185,140
Paid-in capital - preferred	68,853	68,853
Treasury stock, at cost, 6,864,897 shares as of September 30, 2018 and September 30, 2017	(97,388)	(97,388)
Retained deficit	(31,555)	(30,832)
Accumulated other comprehensive income	0	0
Total shareholders' equity	126,645	125,776
Total liabilities and shareholders' equity	$ 282,278	$ 274,102

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

Name:	us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
Namespace Prefix:	us-gaap_
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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682