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CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $) In Thousands, except Per Share data, unless otherwise specified | Mar. 31, 2014 | Mar. 31, 2013
--- | --- | ---
Allowance for doubtful accounts (in dollars) | $ 7 | $ 5
Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001
Preferred stock, shares authorized | 5,000 | 5,000
Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001
Common stock, shares authorized | 40,000 | 40,000
Common stock, shares issued | 20,190 | 21,109
Common stock, shares outstanding | 20,190 | 21,109
Convertible Preferred Stock |  |
Preferred stock, shares issued | 3 | 3
Preferred stock, shares outstanding | 3 | 3
Preferred stock, liquidation preference (in dollars per share) | $ 4 | $ 4

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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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