Summary of Significant Accounting Policies	6 Months Ended
Jun. 30, 2013
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Basis of Presentation and Use of Estimates The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six months ended June 30, 2013 are not necessarily indicative of the results that may be expected for the calendar year ending December 31, 2013. These unaudited consolidated financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Company’s annual report on Form 10-K for the year ended December 31, 2012. The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates affecting the accompanying consolidated financial statements include the valuation of agency securities and derivative instruments. Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly owned subsidiary, Diamond Shoals Funding LLC. The Company also considers the provisions of Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”) Topic 810 on Consolidation in determining whether consolidation is appropriate for any interests held in variable interest entities. All significant intercompany balances and transactions have been eliminated. Financial Instruments The Company considers its cash and cash equivalents, restricted cash, agency securities (settled and unsettled), forward purchase commitments, debt security held to maturity, receivable for securities sold, accrued interest receivable, principal payment receivable, payable for unsettled securities, derivative instruments, repurchase agreements and accrued interest payable to meet the definition of financial instruments. The carrying amount of cash and cash equivalents, restricted cash, receivable for securities sold, accrued interest receivable and payable for unsettled securities approximate their fair value due to the short maturities of these instruments and are valued using Level 1 inputs. The carrying amount of repurchase agreements is deemed to approximate fair value since the agreements are based upon a variable rate of interest and are valued using Level 2 inputs. See Note 4 for discussion of the fair value of agency securities and forward purchase commitments. See Note 5 for discussion of the fair value of the held to maturity debt security. See Note 7 for discussion of the fair value of derivative instruments. The Company limits its exposure to credit losses on its portfolio of securities by purchasing agency securities. The portfolio is diversified to avoid undue exposure to loan originator, geographic and other types of concentration. The Company manages the risk of prepayments of the underlying mortgages by creating a diversified portfolio with a variety of expected prepayment characteristics. See Note 4 for additional information on MBS. The Company is engaged in various trading and brokerage activities including repurchase agreements, interest rate swap agreements, and futures contracts in which counterparties primarily include broker-dealers, banks, and other financial institutions. In the event counterparties do not fulfill their obligations, the Company may be exposed to risk of loss. The risk of default depends on the creditworthiness of the counterparty and/or issuer of the instrument. It is the Company’s policy to review, as necessary, the credit standing for each counterparty. See Note 6 for additional information on repurchase agreements and Note 7 for additional information on interest rate swap agreements. Mortgage-Backed Securities The Company invests in agency securities representing interests in or obligations backed by pools of single-family residential mortgage loans. Guidance under the FASB ASC Topic 820 on Investments requires the Company to classify its investments as either trading, available-for-sale or held-to-maturity securities. Management determines the appropriate classifications of the securities at the time they are acquired and evaluates the appropriateness of such classifications at each balance sheet date. The Company currently classifies all of its agency securities as available-for-sale. All assets that are classified as available-for-sale are carried at fair value and unrealized gains and losses are included in other comprehensive income. The estimated fair values of agency securities are determined by management by obtaining valuations for its agency securities from independent sources and averaging these valuations. Security purchase and sale transactions are recorded on the trade date. Gains or losses realized from the sale of securities are included in income and are determined using the specific identification method. Firm purchase commitments to acquire “when issued” or to-be-announced (“TBA”) securities are recorded at fair value in accordance with ASC Topic 815, Derivatives and Hedging (“ASC 815”). The fair value of these purchase commitments is included in other assets or liabilities in the accompanying balance sheets. The Company assesses its investment securities for other-than-temporary impairment on at least a quarterly basis. When the fair value of an investment is less than its amortized cost at the balance sheet date the impairment is designated as either “temporary” or “other-than-temporary.” In deciding whether or not a security is other-than-temporarily impaired, the Company uses a two step evaluation process. First, the Company determines whether it has made any decision to sell a security that is in an unrealized loss position, or, if not, the Company determines whether it is more likely than not that the Company will be required to sell the security prior to recovering its amortized cost basis. If the answer to either of these questions is “yes” then the security is considered other-than-temporarily impaired. There were no such impairment losses recognized during the periods presented. Repurchase Agreements The Company finances the acquisition of its agency securities through the use of repurchase agreements. Under these repurchase agreements, the Company sells securities to a lender and agrees to repurchase the same securities in the future for a price that is higher than the original sales price. The difference between the sale price that the Company receives and the repurchase price that the Company pays represents interest paid to the lender. Although structured as a sale and repurchase obligation, a repurchase agreement operates as a financing under which the Company pledges its securities as collateral to secure a loan which is equal in value to a specified percentage of the estimated fair value of the pledged collateral. The Company retains beneficial ownership of the pledged collateral. At the maturity of a repurchase agreement, the Company is required to repay the loan and concurrently receives back its pledged collateral from the lender or, with the consent of the lender, the Company may renew such agreement at the then prevailing financing rate. These repurchase agreements may require the Company to pledge additional assets to the lender in the event the estimated fair value of the existing pledged collateral declines. Derivative Instruments The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its debt funding. The objectives of our risk management strategy are 1) to attempt to mitigate the risk of the cost of our variable rate liabilities increasing during a period of rising interest rates, and 2) to reduce fluctuations in net book value over a range of interest rate scenarios. The principal instruments that we use are interest rate swaps. We also purchase or sell Euro Dollar Futures Contracts (“Futures Contracts”) to replicate the hedging results achieved with interest rate swaps. We do not enter any of these transactions for speculative purposes. The Company accounts for derivative instruments in accordance with ASC 815, which requires an entity to recognize all derivatives as either assets or liabilities in the balance sheet and to measure those instruments at fair value. The accounting for changes in the fair value of derivative instruments depends on whether the instruments are designated and qualify as part of a hedging relationship pursuant to ASC 815. Changes in fair value related to derivatives not in hedge designated relationships are recorded in gain (loss) on derivative instruments whereas changes in fair value related to derivatives in hedge designated relationships are initially recorded in other comprehensive income and later reclassified to income at the time that the hedged transactions affect earnings. Any portion of the changes in fair value due to hedge ineffectiveness is immediately recognized in the income statement in interest expense. Derivative instruments in a gain position are reported as derivative assets at fair value and derivative instruments in a loss position are reported as derivative liabilities at fair value in the Company’s consolidated balance sheets. In the Company’s consolidated statements of cash flows, cash receipts and payments related to derivative instruments are classified according to the underlying nature or purpose of the derivative transaction, generally in the operating section for the Company’s derivatives. The use of derivatives creates exposure to credit risk relating to potential losses that could be recognized in the event that the counterparties to these instruments fail to perform their obligations under the contracts. The Company attempts to minimize this risk by limiting our counterparties to major financial institutions with acceptable credit ratings, monitoring positions with individual counterparties and adjusting posted collateral as required. Offsetting of Assets and Liabilities The Company’s derivative agreements and repurchase agreements generally contain provisions that allow for netting or the offsetting of receivables and payables with each counterparty. The Company reports amounts in our consolidated balance sheets on a gross basis without regard for such rights of offset or master netting arrangements. Interest Income Interest income is earned and recognized based on the outstanding principal amount of the investment securities and their contractual terms. Premiums and discounts associated with the purchase of the investment securities are amortized or accreted into interest income over the actual lives of the securities using the effective interest method. Income Taxes The Company has elected to be taxed as a REIT under the Code. The Company will generally not be subject to Federal income tax to the extent that it distributes 100% of its taxable income, after application of available tax attributes, within the time limits prescribed by the Code and as long as it satisfies the ongoing REIT requirements including meeting certain asset, income and stock ownership tests. Share-Based Compensation Share-based compensation is accounted for under the guidance included in the ASC Topic on stock compensation. For share and share-based awards issued to employees, a compensation charge is recorded in earnings based on the fair value of the award. For transactions with non-employees in which services are performed in exchange for the Company’s common stock or other equity instruments, the transactions are recorded on the basis of the fair value of the service received or the fair value of the equity instruments issued, whichever is more readily measurable at the date of issuance. The Company’s share-based compensation transactions resulted in compensation expense of $627 and $425 for the three months ended June 30, 2013 and 2012, respectively. The Company’s share-based compensation transactions resulted in compensation expense of $1,256 and $854 for the six months ended June 30, 2013 and 2012, respectively. Earnings Per Common Share (EPS) Basic EPS is computed by dividing net income less preferred stock dividends to arrive at net income available to holders of common stock by the weighted average number of shares of common stock outstanding during the period. Diluted EPS is computed using the two class method, as described in the ASC Topic on Earnings Per Share, which takes into account certain adjustments related to participating securities. Participating securities are unvested share-based awards that contain rights to receive nonforfeitable dividends, such as those awarded under the Company’s equity incentive plan. Net income available to holders of common stock after deducting dividends on unvested participating securities if antidilutive, is divided by the weighted average shares of common stock and common equivalent shares outstanding during the period. For the diluted EPS calculation, common equivalent shares outstanding includes the weighted average number of shares of common stock outstanding adjusted for the effect of dilutive unexercised stock options. Recent Accounting Pronouncements In October 2011, the FASB issued a proposed Accounting Standards Update (“ASU”) ASU 2011-20, Financial Services-Investment Companies: Amendments to the Scope, Measurement, and Disclosure Requirements (“ASU 2011-20”), which would amend the criteria in ASC Topic 946 on Investment Companies (“ASC 946”) for determining whether an entity qualifies as an investment company. As proposed, ASU 2011-20 would affect the measurement, presentation and disclosure requirements for Investment Companies, as defined, amend the investment company definition in ASC 946, and remove the current exemption for real estate investment trusts from this topic, which may have resulted in a material modification to the presentation of the Company’s financial statements. In June 2013, the FASB released ASU 2013-08 Financial Services—Investment Companies (Topic 946): Amendments to the Scope, Measurement, and Disclosure Requirements that set forth new guidance on determining whether a company is subject to investment company accounting. These final rules maintained the scope exemption for real estate investment trusts. In December 2011, the FASB released ASU 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities. Under this update, the Company is required to disclose both gross information and net information about both instruments and transactions eligible for offset in the statement of financial position and transactions subject to an agreement similar to a master netting arrangement. The scope includes derivatives, sale and repurchase agreements and securities borrowing and securities lending arrangements. This disclosure is intended to enable financial statement users to understand the effect of such arrangements on the Company’s financial position. The objective of this update is to support further convergence between U.S. GAAP and International Financial Reporting Standards (“IFRS”). In January 2013, the FASB released ASU 2013-01 Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. Under this update, the FASB limited the scope of ASU 2011-11 to items identified in the implementation guidance which include derivatives, sale and repurchase agreements and securities borrowing and securities lending arrangements that are either offset on the balance sheet or subject to an enforceable master netting agreement. This disclosure was adopted and the adoption of this update did not have a material effect on the Company’s consolidated financial statements. In February 2013, the FASB issued ASU 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income. Under this update, enhanced disclosures are required for items reclassified out of accumulated other comprehensive income. This update is effective for the first interim or annual period beginning on or after December 15, 2012. The disclosure was adopted and the adoption of this update did not have a material effect on the Company’s consolidated financial statements.

2. Summary of Significant Accounting Policies

Basis of Presentation and Use of Estimates

The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six months ended June 30, 2013 are not necessarily indicative of the results that may be expected for the calendar year ending December 31, 2013. These unaudited consolidated financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Company’s annual report on Form 10-K for the year ended December 31, 2012.

The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates affecting the accompanying consolidated financial statements include the valuation of agency securities and derivative instruments.

Principles of Consolidation

The consolidated financial statements include the accounts of the Company and its wholly owned subsidiary, Diamond Shoals Funding LLC. The Company also considers the provisions of Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”) Topic 810 on Consolidation in determining whether consolidation is appropriate for any interests held in variable interest entities. All significant intercompany balances and transactions have been eliminated.

Financial Instruments

The Company considers its cash and cash equivalents, restricted cash, agency securities (settled and unsettled), forward purchase commitments, debt security held to maturity, receivable for securities sold, accrued interest receivable, principal payment receivable, payable for unsettled securities, derivative instruments, repurchase agreements and accrued interest payable to meet the definition of financial instruments. The carrying amount of cash and cash equivalents, restricted cash, receivable for securities sold, accrued interest receivable and payable for unsettled securities approximate their fair value due to the short maturities of these instruments and are valued using Level 1 inputs. The carrying amount of repurchase agreements is deemed to approximate fair value since the agreements are based upon a variable rate of interest and are valued using Level 2 inputs. See Note 4 for discussion of the fair value of agency securities and forward purchase commitments. See Note 5 for discussion of the fair value of the held to maturity debt security. See Note 7 for discussion of the fair value of derivative instruments.

The Company limits its exposure to credit losses on its portfolio of securities by purchasing agency securities. The portfolio is diversified to avoid undue exposure to loan originator, geographic and other types of concentration. The Company manages the risk of prepayments of the underlying mortgages by creating a diversified portfolio with a variety of expected prepayment characteristics. See Note 4 for additional information on MBS.

The Company is engaged in various trading and brokerage activities including repurchase agreements, interest rate swap agreements, and futures contracts in which counterparties primarily include broker-dealers, banks, and other financial institutions. In the event counterparties do not fulfill their obligations, the Company may be exposed to risk of loss. The risk of default depends on the creditworthiness of the counterparty and/or issuer of the instrument. It is the Company’s policy to review, as necessary, the credit standing for each counterparty. See Note 6 for additional information on repurchase agreements and Note 7 for additional information on interest rate swap agreements.

Mortgage-Backed Securities

The Company invests in agency securities representing interests in or obligations backed by pools of single-family residential mortgage loans. Guidance under the FASB ASC Topic 820 on Investments requires the Company to classify its investments as either trading, available-for-sale or held-to-maturity securities. Management determines the appropriate classifications of the securities at the time they are acquired and evaluates the appropriateness of such classifications at each balance sheet date. The Company currently classifies all of its agency securities as available-for-sale. All assets that are classified as available-for-sale are carried at fair value and unrealized gains and losses are included in other comprehensive income. The estimated fair values of agency securities are determined by management by obtaining valuations for its agency securities from independent sources and averaging these valuations. Security purchase and sale transactions are recorded on the trade date. Gains or losses realized from the sale of securities are included in income and are determined using the specific identification method. Firm purchase commitments to acquire “when issued” or to-be-announced (“TBA”) securities are recorded at fair value in accordance with ASC Topic 815, Derivatives and Hedging (“ASC 815”). The fair value of these purchase commitments is included in other assets or liabilities in the accompanying balance sheets.

The Company assesses its investment securities for other-than-temporary impairment on at least a quarterly basis. When the fair value of an investment is less than its amortized cost at the balance sheet date the impairment is designated as either “temporary” or “other-than-temporary.” In deciding whether or not a security is other-than-temporarily impaired, the Company uses a two step evaluation process. First, the Company determines whether it has made any decision to sell a security that is in an unrealized loss position, or, if not, the Company determines whether it is more likely than not that the Company will be required to sell the security prior to recovering its amortized cost basis. If the answer to either of these questions is “yes” then the security is considered other-than-temporarily impaired. There were no such impairment losses recognized during the periods presented.

Repurchase Agreements

The Company finances the acquisition of its agency securities through the use of repurchase agreements. Under these repurchase agreements, the Company sells securities to a lender and agrees to repurchase the same securities in the future for a price that is higher than the original sales price. The difference between the sale price that the Company receives and the repurchase price that the Company pays represents interest paid to the lender. Although structured as a sale and repurchase obligation, a repurchase agreement operates as a financing under which the Company pledges its securities as collateral to secure a loan which is equal in value to a specified percentage of the estimated fair value of the pledged collateral. The Company retains beneficial ownership of the pledged collateral. At the maturity of a repurchase agreement, the Company is required to repay the loan and concurrently receives back its pledged collateral from the lender or, with the consent of the lender, the Company may renew such agreement at the then prevailing financing rate. These repurchase agreements may require the Company to pledge additional assets to the lender in the event the estimated fair value of the existing pledged collateral declines.

Derivative Instruments

The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its debt funding. The objectives of our risk management strategy are 1) to attempt to mitigate the risk of the cost of our variable rate liabilities increasing during a period of rising interest rates, and 2) to reduce fluctuations in net book value over a range of interest rate scenarios. The principal instruments that we use are interest rate swaps. We also purchase or sell Euro Dollar Futures Contracts (“Futures Contracts”) to replicate the hedging results achieved with interest rate swaps. We do not enter any of these transactions for speculative purposes.

The Company accounts for derivative instruments in accordance with ASC 815, which requires an entity to recognize all derivatives as either assets or liabilities in the balance sheet and to measure those instruments at fair value. The accounting for changes in the fair value of derivative instruments depends on whether the instruments are designated and qualify as part of a hedging relationship pursuant to ASC 815. Changes in fair value related to derivatives not in hedge designated relationships are recorded in gain (loss) on derivative instruments whereas changes in fair value related to derivatives in hedge designated relationships are initially recorded in other comprehensive income and later reclassified to income at the time that the hedged transactions affect earnings. Any portion of the changes in fair value due to hedge ineffectiveness is immediately recognized in the income statement in interest expense.

Derivative instruments in a gain position are reported as derivative assets at fair value and derivative instruments in a loss position are reported as derivative liabilities at fair value in the Company’s consolidated balance sheets. In the Company’s consolidated statements of cash flows, cash receipts and payments related to derivative instruments are classified according to the underlying nature or purpose of the derivative transaction, generally in the operating section for the Company’s derivatives. The use of derivatives creates exposure to credit risk relating to potential losses that could be recognized in the event that the counterparties to these instruments fail to perform their obligations under the contracts. The Company attempts to minimize this risk by limiting our counterparties to major financial institutions with acceptable credit ratings, monitoring positions with individual counterparties and adjusting posted collateral as required.

Offsetting of Assets and Liabilities

The Company’s derivative agreements and repurchase agreements generally contain provisions that allow for netting or the offsetting of receivables and payables with each counterparty. The Company reports amounts in our consolidated balance sheets on a gross basis without regard for such rights of offset or master netting arrangements.

Interest Income

Interest income is earned and recognized based on the outstanding principal amount of the investment securities and their contractual terms. Premiums and discounts associated with the purchase of the investment securities are amortized or accreted into interest income over the actual lives of the securities using the effective interest method.

Income Taxes

The Company has elected to be taxed as a REIT under the Code. The Company will generally not be subject to Federal income tax to the extent that it distributes 100% of its taxable income, after application of available tax attributes, within the time limits prescribed by the Code and as long as it satisfies the ongoing REIT requirements including meeting certain asset, income and stock ownership tests.

Share-Based Compensation

Share-based compensation is accounted for under the guidance included in the ASC Topic on stock compensation. For share and share-based awards issued to employees, a compensation charge is recorded in earnings based on the fair value of the award. For transactions with non-employees in which services are performed in exchange for the Company’s common stock or other equity instruments, the transactions are recorded on the basis of the fair value of the service received or the fair value of the equity instruments issued, whichever is more readily measurable at the date of issuance. The Company’s share-based compensation transactions resulted in compensation expense of $627 and $425 for the three months ended June 30, 2013 and 2012, respectively. The Company’s share-based compensation transactions resulted in compensation expense of $1,256 and $854 for the six months ended June 30, 2013 and 2012, respectively.

Earnings Per Common Share (EPS)

Basic EPS is computed by dividing net income less preferred stock dividends to arrive at net income available to holders of common stock by the weighted average number of shares of common stock outstanding during the period. Diluted EPS is computed using the two class method, as described in the ASC Topic on Earnings Per Share, which takes into account certain adjustments related to participating securities. Participating securities are unvested share-based awards that contain rights to receive nonforfeitable dividends, such as those awarded under the Company’s equity incentive plan. Net income available to holders of common stock after deducting dividends on unvested participating securities if antidilutive, is divided by the weighted average shares of common stock and common equivalent shares outstanding during the period. For the diluted EPS calculation, common equivalent shares outstanding includes the weighted average number of shares of common stock outstanding adjusted for the effect of dilutive unexercised stock options.

Recent Accounting Pronouncements

In October 2011, the FASB issued a proposed Accounting Standards Update (“ASU”) ASU 2011-20, Financial Services-Investment Companies: Amendments to the Scope, Measurement, and Disclosure Requirements (“ASU 2011-20”), which would amend the criteria in ASC Topic 946 on Investment Companies (“ASC 946”) for determining whether an entity qualifies as an investment company. As proposed, ASU 2011-20 would affect the measurement, presentation and disclosure requirements for Investment Companies, as defined, amend the investment company definition in ASC 946, and remove the current exemption for real estate investment trusts from this topic, which may have resulted in a material modification to the presentation of the Company’s financial statements. In June 2013, the FASB released ASU 2013-08 Financial Services—Investment Companies (Topic 946): Amendments to the Scope, Measurement, and Disclosure Requirements that set forth new guidance on determining whether a company is subject to investment company accounting. These final rules maintained the scope exemption for real estate investment trusts.

In December 2011, the FASB released ASU 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities. Under this update, the Company is required to disclose both gross information and net information about both instruments and transactions eligible for offset in the statement of financial position and transactions subject to an agreement similar to a master netting arrangement. The scope includes derivatives, sale and repurchase agreements and securities borrowing and securities lending arrangements. This disclosure is intended to enable financial statement users to understand the effect of such arrangements on the Company’s financial position. The objective of this update is to support further convergence between U.S. GAAP and International Financial Reporting Standards (“IFRS”). In January 2013, the FASB released ASU 2013-01 Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. Under this update, the FASB limited the scope of ASU 2011-11 to items identified in the implementation guidance which include derivatives, sale and repurchase agreements and securities borrowing and securities lending arrangements that are either offset on the balance sheet or subject to an enforceable master netting agreement. This disclosure was adopted and the adoption of this update did not have a material effect on the Company’s consolidated financial statements.

In February 2013, the FASB issued ASU 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income. Under this update, enhanced disclosures are required for items reclassified out of accumulated other comprehensive income. This update is effective for the first interim or annual period beginning on or after December 15, 2012. The disclosure was adopted and the adoption of this update did not have a material effect on the Company’s consolidated financial statements.