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Business Combination - Preliminary Valuation (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Feb. 15, 2013	Sep. 30, 2012
BusinessAcquisitionPurchasePriceAllocationAbstract
Receivable Owed By Acro Used In Purchase Price		$ 1,042	$ 2,263
BusinessAcquisitionCostOfAcquiredEntityCashPaid	828
BusinessAcquisitionContingentConsiderationAtFairValue	665
BusinessCombinationConsiderationTransferred	$ 4,798

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Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

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Amount of cash paid to acquire the entity.

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This element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.

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