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Equity | 6 Months Ended
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Jun. 30, 2015
Equity [Abstract] |
Equity | Equity Class A Common Stock The Company has a total of 3,097,193 shares of its Class A common stock outstanding at June 30, 2015. Each share of Class A common stock holds economic rights and entitles its holder to one vote on all matters to be voted on by shareholders generally. Class B Common Stock The Company has a total of 10,750,000 shares of its Class B common stock outstanding at June 30, 2015. Each share of Class B common stock, all of which is held by NuDevco, has no economic rights but entitles its holder to one vote on all matters to be voted on by shareholders generally. Holders of Class A common stock and Class B common stock vote together as a single class on all matters presented to our shareholders for their vote or approval, except as otherwise required by applicable law or by our certificate of incorporation. Preferred Stock The Company has 20,000,000 shares of authorized preferred stock of which there are no issued and outstanding shares at June 30, 2015. Earnings Per Share Basic earnings per share (“EPS”) is computed by dividing net income attributable to shareholders (the numerator) by the weighted-average number of Class A common shares outstanding for the period (the denominator). Class B common shares are not included in the calculation of basic earnings per share because they have no economic interest in the Company. Diluted earnings per share is similarly calculated except that the denominator is increased (1) using the treasury stock method to determine the potential dilutive effect of the Company's outstanding unvested restricted stock units and (2) using the if-converted method to determine the potential dilutive effect of the Company's Class B common stock. For the three and six months ended June 30, 2015, the Company's unvested restricted stock units were not recognized in dilutive earnings per share as they would have been antidilutive. For the three months ended June 30, 2015, the Class B common stock conversion to Class A common stock was not recognized in dilutive earnings per share as the effect of the conversion would be antidilutive. The following table presents the computation of earnings per share for the three month and six month periods ended June 30, 2015 (in thousands, except per share data):
| Three Months Ended |  | Six Months Ended
| June 30, 2015 |  | June 30, 2015
Net income attributable to shareholders of Class A common stock | $ | 708 |  |  | $ | 3,117 |
Basic weighted average Class A common shares outstanding | 3,062 |  |  | 3,031 |
Basic EPS attributable to shareholders | $ | 0.23 |  |  | $ | 1.03 |
Net income attributable to shareholders of Class A common stock | $ | 708 |  |  | $ | 3,117 |
Effect of conversion of Class B common stock to shares of Class A common stock | — |  |  | 8,309 |
Diluted net income attributable to shareholders of Class A common stock | 708 |  |  | 11,426 |
Basic weighted average Class A common shares outstanding | 3,062 |  |  | 3,031 |
Effect of dilutive Class B common stock | — |  |  | 10,750 |
Effect of dilutive restricted stock units | — |  |  | — |
Diluted weighted average shares outstanding | 3,062 |  |  | 13,781 |
Diluted EPS attributable to shareholders | $ | 0.23 |  |  | $ | 0.83 |
Non-controlling Interest From the Offering to May 4, 2015, the Company owned a 21.82% economic interest in Spark HoldCo, and NuDevco owned a 78.18% economic interest in Spark HoldCo. At June 30, 2015, the Company owns a 22.37% economic interest in Spark HoldCo, and is the sole managing member in Spark HoldCo, and NuDevco owns a 77.63% economic interest in Spark HoldCo. As a result, the Company has consolidated the financial position and results of operations of Spark HoldCo and reflected the economic interest owned by NuDevco as a non-controlling interest.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d),(e)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Preferred Stock -URI http://asc.fasb.org/extlink&oid=6521494 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 15: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section C + Details
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