Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | December 31, 2016 December 31, 2015 Mortgage-backed securities: Agency Federal Home Loan Mortgage Corporation $ 326,958,046 $ 148,760,159 Federal National Mortgage Association 463,232,187 182,867,134 Government National Mortgage Association - 43,705,764 Non-Agency 7,592,802 92,107,727 Multi-Family 73,146,566 104,025,797 Total mortgage-backed securities $ 870,929,601 $ 571,466,581 December 31, 2016 Agency Non-Agency (1) Multi-Family Total Face Value $ 779,219,115 $ 4,393,771 $ 100,907,815 $ 884,520,701 Unamortized premium 17,748,138 - - 17,748,138 Unamortized discount Designated credit reserve and OTTI (2) - (1,929,833) - (1,929,833) Net, unamortized (1,311,292) (369,887) (26,160,083) (27,841,262) Amortized Cost 795,655,961 2,094,051 74,747,732 872,497,744 Gross unrealized gain 2,663,975 234,647 509,519 3,408,141 Gross unrealized (loss) (8,129,703) - (2,110,685) (10,240,388) Fair Value $ 790,190,233 $ 2,328,698 $ 73,146,566 $ 865,665,497 December 31, 2015 Agency Non-Agency (1) Multi - Family Total Face Value $ 370,394,525 $ 116,954,842 $ 138,829,925 $ 626,179,292 Unamortized premium 5,745,862 80,257 - 5,826,119 Unamortized discount Designated credit reserve and OTTI (2) - (8,891,565) - (8,891,565) Net, unamortized (1,929,145) (22,101,062) (33,250,068) (57,280,275) Amortized Cost 374,211,242 86,042,472 105,579,857 565,833,571 Gross unrealized gain 3,234,673 1,099,957 913,556 5,248,186 Gross unrealized (loss) (2,112,858) (1,808,973) (2,467,616) (6,389,447) Fair Value $ 375,333,057 $ 85,333,456 $ 104,025,797 $ 564,692,310 (1) Non-Agency AFS does not include interest-only securities with a notional amount of $ 509,109,248 14,712,374 9,448,271 5,264,104 428,230,275 7,815,919 1,041,649 6,774,271 (2) Discount designated as Credit Reserve and amount related to OTTI are generally not expected to be accreted into interest income. Amounts disclosed reflect Credit Reserve of $ 1,929,833 8,146,073 0 745,492 At December 31, 2016, the Company did not intend to sell any of its MBS that were in an unrealized loss position, and it is “more likely than not” that the Company will not be required to sell these MBS before recovery of their amortized cost basis, which may be at their maturity. The Company recognized credit-related OTTI losses through earnings of $ 0.73 3.64 Non-Agency RMBS on which OTTI is recognized have experienced, or are expected to experience, credit-related adverse cash flow changes, or credit impairment. The Company’s estimate of cash flows for its Non-Agency RMBS is based on its review of the underlying mortgage loans securing these RMBS. The Company considers information available about the structure of the securitization, including structural credit enhancement, if any, and the past and expected future performance of underlying mortgage loans, including timing of expected future cash flows, prepayment rates, default rates, loss severities, delinquency rates, percentage of non-performing loans, FICO scores at loan origination, year of origination, loan-to-value ratios, geographic concentrations, as well as Rating Agency reports, general market assessments, and dialogue with market participants. Significant judgment is used in both the Company’s analysis of the expected cash flows for its Non-Agency RMBS and any determination of OTTI that is the result, at least in part, of credit impairment. Year Ended December 31, 2016 2015 2014 Cumulative credit loss at beginning of period $ (3,636,431) $ - - Additions: Initial (increase) in credit reserves (541,342) (745,492) - Subsequent (increase) in credit reserves - - Initial additional other-than-temporary credit impairment losses (183,790) (2,890,939) - Subsequent additional other-than-temporary credit impairment losses - - Reductions: For securities sold decrease in credit reserves 1,286,835 - - For securities sold decrease in other-than-temporary impairment - - - Cumulative credit (loss) at end of period $ (3,074,728) $ (3,636,431) - Unrealized losses on the Company’s legacy Non-Agency RMBS were $ 0.0 1.8 12,611 The following table presents the components comprising the carrying value of AFS securities not deemed to be other than temporarily impaired by length of time the securities had an unrealized loss position as of December 31, 2016, and December 31, 2015. At December 31, 2016 the Company held 46 AFS securities, of which 31 were in an unrealized loss position for less than twelve consecutive months and five were in an unrealized loss for more than twelve months. All of these securities were either Agency RMBS or Multi-Family MBS. As such, credit-related adverse cash flow changes are not applicable and consequently no OTTI is recognized. Less than 12 months Greater than 12 months Total Estimated Fair Gross Unrealized Estimated Fair Gross Unrealized Estimated Fair Gross Unrealized Value Losses Value Losses Value Losses December 31, 2016 $ 619,414,077 $ (8,129,704) $ 45,879,433 $ (2,110,684) $ 665,293,510 $ (10,240,388) December 31, 2015 $ 348,120,251 $ (5,983,726) $ 6,939,257 $ (405,720) $ 355,059,508 $ (6,389,446) To the extent the Company determines there are likely to be decreases in cash flows expected to be collected, and as a result of non-credit impairment, such changes are generally recognized prospectively through adjustment of the security’s yield over its remaining life. The following table presents a summary of the Company’s net realized gain (loss) from the sale of AFS securities, inclusive of securities previously booked as linked, for the years ended December 2016, December 2015, and December 2014. December 31, 2016 December 31, 2015 December 31, 2014 AFS securities sold, at cost $ 268,849,640 $ 267,741,325 $ 462,470,753 Proceeds from AFS securities sold 263,143,871 267,567,905 466,239,975 Net realized gain (loss) on sale of AFS securities $ (5,705,769) $ (173,420) $ 3,769,222 December 31, 2016 Agency Non-Agency Multi-Family Total Adjustable rate $ 788,727,476 $ 7,592,802 $ - $ 796,320,278 Fixed rate 1,462,757 - 73,146,566 74,609,323 Total $ 790,190,233 $ 7,592,802 $ 73,146,566 $ 870,929,601 December 31, 2015 Agency Non-Agency Multi- Family Total Adjustable rate $ 360,057,377 $ 92,107,727 $ - $ 452,165,104 Fixed rate 15,275,680 - 104,025,797 119,301,477 Total $ 375,333,057 $ 92,107,727 $ 104,025,797 $ 571,466,581 December 31, 2016 December 31, 2015 Less than one year $ - $ - Greater than one year and less than five years 399,872,894 211,800,340 Greater than or equal to five years 471,056,707 359,666,241 Total $ 870,929,601 $ 571,466,581 As described in Note 2, when the Company purchases a credit-sensitive AFS security at a significant discount to its face value, the Company generally does not amortize into income a significant portion of this discount that the Company is entitled to earn because it does not expect to collect it due to the inherent credit risk of the security. The Company may also record an OTTI for a portion of its investment in the security to the extent the Company believes that the amortized cost will exceed the present value of expected future cash flows. The amount of principal that the Company does not amortize into income is designated as an off balance sheet credit reserve on the security, with unamortized net discounts or premiums amortized into income over time to the extent realizable. Actual maturities of AFS securities are affected by the contractual lives of the associated mortgage collateral, periodic payments of principal, and prepayments of principal. Therefore actual maturities of available-for-sale securities are generally shorter than stated contractual maturities. Stated contractual maturities are generally greater than ten years. December 31, 2016 Designated Unamortized credit reserve net discount Total Beginning Balance as of January 1, 2016 $ (8,891,565) $ (57,280,275) $ (66,171,840) Acquisitions - - - Dispositions 4,893,913 21,637,637 26,531,550 Accretion of net discount - 6,703,365 6,703,365 Realized gain on paydowns - 325,709 325,709 Realized credit losses 3,023,911 (183,790) 2,840,121 Addition to credit reserves (1,021,433) 1,021,433 - Release of credit reserves 65,341 (65,341) - Ending balance at December 31, 2016 $ (1,929,833) $ (27,841,262) $ (29,771,095) December 31, 2015 Designated Unamortized credit reserve net discount Total Beginning Balance as of January 1, 2015 $ (12,697,796) $ (17,454,022) $ (30,151,818) Cumulative - effect adjustment for Linked Transactions (36,627,321) (47,091,958) (83,719,279) Adjusted beginning Balance as of January 1, 2015 (49,325,117) (64,545,980) (113,871,097) Acquisitions - (24,446,013) (24,446,013) Dispositions - 20,963,895 20,963,895 Accretion of net discount 30,201,676 13,061,839 43,263,515 Realized gain on paydowns - 226,553 226,553 Realized credit losses 10,582,246 (2,890,939) 7,691,307 Addition to credit reserves (2,669,938) 2,669,938 - Release of credit reserves 2,319,568 (2,319,568) - Ending balance at December 31, 2015 $ (8,891,565) $ (57,280,275) $ (66,171,840) Gains and losses from the sale of AFS securities are recorded within realized gain (loss) on sale of investments, net in the Company's consolidated statements of operations. Unrealized gains and losses on the Company’s AFS securities except Non-Agency RMBS IOs are recorded as unrealized gain (loss) on available-for-sale securities, net in the Company's consolidated statement of comprehensive income (loss). For the year ended December 31, 2016 the Company had unrealized gains (losses) on AFS securities of ($ 8,872,859 7,604,122 18,303,304 Year Ended December 31, 2016 Net (premium Coupon amortization)/ Interest interest discount accretion income Agency $ 13,138,828 $ 341,020 $ 13,479,848 Non-Agency 2,579,344 1,343,594 3,922,938 Multi-Family 1,006,106 5,066,873 6,072,979 Total $ 16,724,278 $ 6,751,487 $ 23,475,765 Year Ended December 31, 2015 Net (premium Coupon amortization)/ Interest interest discount accretion income Agency $ 7,286,166 $ 241,550 $ 7,527,716 Non-Agency 2,357,814 7,653,839 10,011,653 Multi-Family 1,443,326 5,315,461 6,758,787 Total $ 11,087,306 $ 13,210,850 $ 24,298,156 Year Ended December 31, 2014 Net (premium Coupon amortization)/ Interest interest discount accretion income Agency $ 11,409,239 $ 603,547 $ 12,012,786 Non-Agency 261,050 4,077,481 4,338,531 Multi-Family 184,411 24,610 209,021 Total $ 11,854,700 $ 4,705,638 $ 16,560,338 |