Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations.

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Fair Value Accounting (Fair Value Measurement) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Account:
Cash and cash equivalents	$ 18,144	$ 16,104	$ 11,883	$ 9,047
Restricted cash	552	815
Warrant liability	233	155
Recurring
Account:
Cash and cash equivalents	18,144	16,104
Restricted cash	552	815
Warrant liability	233	155
Recurring \| Fair Value, Inputs, Level 1
Account:
Cash and cash equivalents	18,144	16,104
Restricted cash	552
Warrant liability	0	0
Recurring \| Fair Value, Inputs, Level 2
Account:
Cash and cash equivalents	0	0
Restricted cash	0	0
Warrant liability	233	155
Recurring \| Fair Value, Inputs, Level 3
Account:
Cash and cash equivalents	0	0
Restricted cash	0	0
Warrant liability	$ 0	$ 0