Earnings per share	12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]
Earnings per share	4. Earnings per share The Company computes earnings (loss) per share by applying the guidance stated in ASC 260, Earnings per Share, to determine the net income (loss) available per share of its common stock. Prior to the conversion of the shares of Company preferred stock to Company common stock as described in Note 3, “Reverse recapitalization of The W Group, private placement, reverse split and migratory merger,” earnings per share was calculated using the two-class method because the convertible preferred shares participated in any undistributed earnings with the common stockholders, specifically, on a one-to-one, as-if converted basis, without giving effect to the limitations on conversion of the preferred stock. Thus, under the two-class method, earnings allocated to preferred shares were based upon the proportion of the “as-if converted” preferred shares to the combined total of common shares, plus the “as-if converted” shares. Basic and diluted EPS under the two-class method were then calculated as earnings allocated to common shares divided by the weighted average of the actual common shares outstanding during the reporting period after giving effect to the adjustment for the Reverse Split. Though the Company did not pay dividends prior to the Reverse Split, because the preferred stock granted the right to participate in undistributed earnings with Company common stock, it was considered a participating security, and the Company applied the two-class method to calculate per share amounts for distributed and undistributed earnings required under ASC 260, until all of the shares of preferred stock were converted into shares of Company common stock. Upon the effectiveness of the Reverse Split on August 26, 2011, all shares of the Company’s preferred stock automatically converted into shares of the Company’s common stock. Effective upon, and at all times since, the conversion of the Company preferred stock to Company common stock, the treasury stock method has been used to compute earnings (loss) per share. *Computation of undistributed earnings and allocation of undistributed earnings to participating securities* The undistributed earnings were allocable to the participating securities (i.e., common shares and the convertible preferred shares) on a pro rata basis under the two-class method until August 26, 2011, the effective date of the Migratory Merger, through which the Reverse Split was consummated (including the automatic conversion of preferred stock effected thereby). Through August 26, 2011, the allocation of undistributed earnings to each class of participating stock was based upon the proportionate ratio of average outstanding shares of each class of stock to the total average shares outstanding as adjusted for the Reverse Split, on an as-if converted basis. Upon the effectiveness of the Migratory Merger, each of the preferred shares was automatically converted into a number of shares of common stock of the surviving entity in the Migratory Merger, equal to one-thousand dollars divided by $12.00, the per share conversion price for the preferred stock, as adjusted for the Reverse Split, and thereafter, no PSI preferred shares existed. Accordingly, all undistributed earnings were allocated to shares of common stock after conversion of the shares of preferred stock into shares of common stock on August 26, 2011. *Computation of dilutive common shares* The Company utilizes the treasury stock method described in ASC 260-10-55 to determine the number of treasury shares assumed to be purchased, with any residual shares representing the incremental common shares to be issued and included in diluted EPS. The Roth Warrant (until exercised), the Company’s Private Placement Warrants, the stock appreciation rights (“SAR” as described in Note 9, “2012 Incentive compensation plan”) and restricted stock (as also described in Note 9, “2012 Incentive compensation plan) were evaluated for their potentially dilutive effect under the treasury stock method. As of December 31, 2013, due to the loss reported in the consolidated statements of operating results, any potentially issuable shares of Company common stock associated with the Private Placement Warrants, SAR and restricted stock granted are not included in the dilutive EPS calculation. These potential shares were excluded from the diluted EPS calculation because they have an anti-dilutive effect under the treasury stock method. The Company’s average closing market price of the Company’s common stock for the year ended December 31, 2012 was $15.51 per share. Although the exercise price of the Private Placement Warrants was $13.00 per share, all of the remaining potentially issuable shares of common stock associated with the Private Placement Warrants were determined to be anti-dilutive due to warrant valuation expenses that were included in the consolidated statement of operating results, but such expenses were required to be excluded from operating results in the fully dilutive computation. As of December 31, 2012, based on the Company’s estimated average fair value as noted above and the SAR strike price of $22.07 per share, as well as certain other requirements as defined in the stock appreciation rights award agreement, the SAR was not dilutive to the Company’s earnings per share. Accordingly, all potentially issuable shares of Company common stock associated with the SAR were excluded from the diluted EPS calculation. Due to the Company’s limited trading volume during the year ended December 31, 2011, the Company estimated the average fair value of its common shares using the estimated fair value derived in the periodic valuations of its Private Placement Warrants liability. Based upon an average estimated fair value of $9.55 per share of the Company’s common stock for the year ended December 31, 2011, and an exercise price of $13.00 per share, all of the potentially issuable shares of common stock were excluded from the diluted EPS calculation. During the year ended December 31, 2013 and 2012, portions of the Private Placement Warrants were exercised, resulting in the issuance of 339,410 and 13,750 shares of Company common stock, respectively. The Roth Warrant was cashlessly exercised in full on September 1, 2011, for an aggregate of 62,116 shares of common stock based upon the value of the Company’s common stock as determined pursuant to the Roth Warrant. See Note 12, “Stockholders’ equity” for further detail of these transactions.

4. Earnings per share

The Company computes earnings (loss) per share by applying the guidance stated in ASC 260, Earnings per Share, to determine the net income (loss) available per share of its common stock. Prior to the conversion of the shares of Company preferred stock to Company common stock as described in Note 3, “Reverse recapitalization of The W Group, private placement, reverse split and migratory merger,” earnings per share was calculated using the two-class method because the convertible preferred shares participated in any undistributed earnings with the common stockholders, specifically, on a one-to-one, as-if converted basis, without giving effect to the limitations on conversion of the preferred stock. Thus, under the two-class method, earnings allocated to preferred shares were based upon the proportion of the “as-if converted” preferred shares to the combined total of common shares, plus the “as-if converted” shares. Basic and diluted EPS under the two-class method were then calculated as earnings allocated to common shares divided by the weighted average of the actual common shares outstanding during the reporting period after giving effect to the adjustment for the Reverse Split.

Though the Company did not pay dividends prior to the Reverse Split, because the preferred stock granted the right to participate in undistributed earnings with Company common stock, it was considered a participating security, and the Company applied the two-class method to calculate per share amounts for distributed and undistributed earnings required under ASC 260, until all of the shares of preferred stock were converted into shares of Company common stock. Upon the effectiveness of the Reverse Split on August 26, 2011, all shares of the Company’s preferred stock automatically converted into shares of the Company’s common stock. Effective upon, and at all times since, the conversion of the Company preferred stock to Company common stock, the treasury stock method has been used to compute earnings (loss) per share.

Computation of undistributed earnings and allocation of undistributed earnings to participating securities

The undistributed earnings were allocable to the participating securities (i.e., common shares and the convertible preferred shares) on a pro rata basis under the two-class method until August 26, 2011, the effective date of the Migratory Merger, through which the Reverse Split was consummated (including the automatic conversion of preferred stock effected thereby). Through August 26, 2011, the allocation of undistributed earnings to each class of participating stock was based upon the proportionate ratio of average outstanding shares of each class of stock to the total average shares outstanding as adjusted for the Reverse Split, on an as-if converted basis. Upon the effectiveness of the Migratory Merger, each of the preferred shares was automatically converted into a number of shares of common stock of the surviving entity in the Migratory Merger, equal to one-thousand dollars divided by $12.00, the per share conversion price for the preferred stock, as adjusted for the Reverse Split, and thereafter, no PSI preferred shares existed. Accordingly, all undistributed earnings were allocated to shares of common stock after conversion of the shares of preferred stock into shares of common stock on August 26, 2011.

Computation of dilutive common shares

The Company utilizes the treasury stock method described in ASC 260-10-55 to determine the number of treasury shares assumed to be purchased, with any residual shares representing the incremental common shares to be issued and included in diluted EPS. The Roth Warrant (until exercised), the Company’s Private Placement Warrants, the stock appreciation rights (“SAR” as described in Note 9, “2012 Incentive compensation plan”) and restricted stock (as also described in Note 9, “2012 Incentive compensation plan) were evaluated for their potentially dilutive effect under the treasury stock method.

As of December 31, 2013, due to the loss reported in the consolidated statements of operating results, any potentially issuable shares of Company common stock associated with the Private Placement Warrants, SAR and restricted stock granted are not included in the dilutive EPS calculation. These potential shares were excluded from the diluted EPS calculation because they have an anti-dilutive effect under the treasury stock method.

The Company’s average closing market price of the Company’s common stock for the year ended December 31, 2012 was $15.51 per share. Although the exercise price of the Private Placement Warrants was $13.00 per share, all of the remaining potentially issuable shares of common stock associated with the Private Placement Warrants were determined to be anti-dilutive due to warrant valuation expenses that were included in the consolidated statement of operating results, but such expenses were required to be excluded from operating results in the fully dilutive computation. As of December 31, 2012, based on the Company’s estimated average fair value as noted above and the SAR strike price of $22.07 per share, as well as certain other requirements as defined in the stock appreciation rights award agreement, the SAR was not dilutive to the Company’s earnings per share. Accordingly, all potentially issuable shares of Company common stock associated with the SAR were excluded from the diluted EPS calculation.

Due to the Company’s limited trading volume during the year ended December 31, 2011, the Company estimated the average fair value of its common shares using the estimated fair value derived in the periodic valuations of its Private Placement Warrants liability. Based upon an average estimated fair value of $9.55 per share of the Company’s common stock for the year ended December 31, 2011, and an exercise price of $13.00 per share, all of the potentially issuable shares of common stock were excluded from the diluted EPS calculation.

During the year ended December 31, 2013 and 2012, portions of the Private Placement Warrants were exercised, resulting in the issuance of 339,410 and 13,750 shares of Company common stock, respectively. The Roth Warrant was cashlessly exercised in full on September 1, 2011, for an aggregate of 62,116 shares of common stock based upon the value of the Company’s common stock as determined pursuant to the Roth Warrant. See Note 12, “Stockholders’ equity” for further detail of these transactions.