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Net (Loss) Income per Share Attributable to Common Stock (Tables) | 12 Months Ended
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Dec. 31, 2015
Net (Loss) Income per Share Attributable to Common Stock |
Schedule of the reconciliation of basic and diluted (loss) income per share attributable to common stock |
|  | Year Ended December 31, |  | Three Months Ended December 31, |  | Year Ended September 30, |
|  | 2015 |  | 2014 |  | 2014 |  | 2013 |
|  | (in thousands, except share and per share data) |
Net (loss) income |  | $ | (26,279 | ) | $ | (4,991 | ) | $ | (12,620 | ) | $ | 10,480 |
Income allocable to unvested restricted stock |  |  | — |  |  | (9 | ) |  | (26 | ) |  | (136 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic (loss) income attributable to common stock |  | $ | (26,279 | ) | $ | (5,000 | ) | $ | (12,646 | ) | $ | 10,344 |
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Reallocation of participating earnings |  |  | — |  |  | — |  |  | — |  |  | 1 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted (loss) income attributable to common stock |  | $ | (26,279 | ) | $ | (5,000 | ) | $ | (12,646 | ) | $ | 10,345 |
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Weighted average common shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 20,688,185 |  |  | 14,019,813 |  |  | 14,008,635 |  |  | 13,868,120 |
Dilutive common stock options and restricted stock units |  |  | — |  |  | — |  |  | — |  |  | 71,721 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted |  |  | 20,688,185 |  |  | 14,019,813 |  |  | 14,008,635 |  |  | 13,939,841 |
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Basic (loss) income attributable to a share of common stock |  | $ | (1.27 | ) | $ | (0.36 | ) | $ | (0.90 | ) | $ | 0.75 |
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Diluted (loss) income attributable to a share of common stock |  | $ | (1.27 | ) | $ | (0.36 | ) | $ | (0.90 | ) | $ | 0.74 |
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Schedule of weighted average numbers of stock options and restricted stock units that have been excluded from the calculation of diluted loss per share attributable to common stock |
|  | Year Ended December 31, |  | Three Months ended December 31, |  | Year Ended September 30, |
|  | 2015 |  | 2014 |  | 2014 |
Stock options |  |  | 159,561 |  |  | 160,434 |  |  | 162,107 |
Restricted stock units |  |  | 126,596 |  |  | 66,405 |  |  | 33,373 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total |  |  | 286,157 |  |  | 226,839 |  |  | 195,480 |
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Schedule of weighted average shares of unvested restricted stock included in common stock outstanding |
|  | Year Ended December 31, |  | Three Months Ended December 31, |  | Year Ended September 30, |
|  | 2015 |  | 2014 |  | 2014 |  | 2013 |
Restricted Stock |  |  | 46,695 |  |  | 182,160 |  |  | 182,160 |  |  | 182,160 |

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- Definition Represents the tabular disclosure of the weighted average shares of unvested restricted stock units that are included in common stock outstanding as the units have a non-forfeitable right to participate in any dividends that might be declared and have the right to vote. + References No definition available. + Details
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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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