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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions | Sep. 30, 2015 | Sep. 30, 2014
--- | --- | ---
Accounts receivable, allowance for doubtful accounts (in dollars) | $ 0.9 | $ 0.8
Preferred stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Preferred stock, shares authorized | 1,000,000 | 1,000,000
Preferred stock, shares outstanding | 116,000 | 116,000
Preferred stock, shares issued | 116,000 | 116,000
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, shares authorized | 3,000,000 | 3,000,000
Common stock, shares issued | 621,104 | 602,411
Common stock, shares outstanding | 621,104 | 602,411
Series A preferred stock |  |
Cumulative, Convertible Preferred Stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Cumulative, Convertible Preferred Stock, shares authorized | 100,000 | 100,000
Cumulative, convertible preferred stock, shares issued | 100,000 | 100,000
Cumulative, Convertible Preferred Stock, liquidation preference (in dollars) | $ 2.5 | $ 2.5
Series B preferred stock |  |
Cumulative, Convertible Preferred Stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Cumulative, Convertible Preferred Stock, shares authorized | 80,000 | 80,000
Cumulative, convertible preferred stock, shares issued | 16,000 | 16,000
Cumulative, Convertible Preferred Stock, shares outstanding | 16,000 | 16,000
Cumulative, Convertible Preferred Stock, liquidation preference (in dollars) | $ 0.4 | $ 0.4

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- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. + 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 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524 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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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + 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 210.5-02.29) -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 30 -Article 5 + Details
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