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Supporting Financial Information - Accounts Receivable (Details) (USD $) | 3 Months Ended | 12 Months Ended |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 Billed Receivables | Sep. 30, 2013 Billed Receivables | Sep. 30, 2014 Unbilled Receivables | Sep. 30, 2013 Unbilled Receivables | Sep. 30, 2008 DVA
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total accounts receivable | $ 12,372,000 |  |  |  | $ 11,943,000 |  |  |  | $ 12,372,000 | $ 11,943,000 | $ 2,569,000 | $ 2,408,000 | $ 9,803,000 | $ 9,535,000 |
Less: Allowance for doubtful accounts | 0 |  |  |  | 0 |  |  |  | 0 | 0 |  |  |  |  |
Accounts Receivable, Net | 12,372,000 |  |  |  | 11,943,000 |  |  |  | 12,372,000 | 11,943,000 |  |  |  |  |
Retroactive billing |  |  |  |  |  |  |  |  | 9,300,000 |  |  |  |  |  |
Contract revenue nonrecurring |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,800,000
Revenue | $ 15,579,000 | $ 15,692,000 | $ 14,745,000 | $ 14,477,000 | $ 14,045,000 | $ 13,460,000 | $ 13,007,000 | $ 12,994,000 | $ 60,493,000 | $ 53,506,000 |  |  |  |  | $ 1,500,000

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- Definition Amounts 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Subparagraph a, b -Article 5 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3-4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a(1) -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 + Details
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