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Net Income (Loss) Per Share | 9 Months Ended
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Dec. 31, 2012
Net Income (Loss) Per Share [Abstract] |
Net Income (Loss) Per Share | 10. Net Income (Loss) Per Share Basic net income (loss) per share is computed by dividing net income (loss) by the weighted average number of shares of common stock outstanding during the period. Diluted net income (loss) per share includes the effect, if any, from the potential exercise or conversion of securities, such as stock options and warrants, which would result in the issuance of incremental shares of common stock. The following presents a reconciliation of basic and diluted net income (loss) per share.
|  | Three Months Ended |  |  | Nine Months Ended |
|  | December 31, |  |  | December 31, |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Net income (loss) |  | $ | 935,000 |  |  | $ | (21,827,000 | ) |  | $ | (17,860,000 | ) |  | $ | (35,571,000 | )
Basic shares |  |  | 14,463,782 |  |  |  | 12,517,269 |  |  |  | 14,283,080 |  |  |  | 12,417,292 |
Effect of dilutive stock options and warrants |  |  | 61,831 |  |  |  | - |  |  |  | - |  |  |  | - |
Diluted shares |  |  | 14,525,613 |  |  |  | 12,517,269 |  |  |  | 14,283,080 |  |  |  | 12,417,292 |
Net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.06 |  |  | $ | (1.74 | ) |  | $ | (1.25 | ) |  | $ | (2.86 | )
Diluted |  | $ | 0.06 |  |  | $ | (1.74 | ) |  | $ | (1.25 | ) |  | $ | (2.86 | )
The effect of dilutive options and warrants excludes (i) 1,500,933 shares subject to options and 735,484 shares subject to warrants with exercise prices ranging from $5.83 to $15.06 per share for the three months ended December 31, 2012, (ii) 1,648,183 shares subject to options and 735,484 shares subject to warrants with exercise prices ranging from $1.80 to $15.06 per share for the nine months ended December 31, 2012, and (iii) 1,442,284 shares subject to options and 546,283 shares subject to warrants with exercise prices ranging from $1.80 to $15.06 per share for the three and nine months ended December 31, 2011 — all of which were anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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