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Securities, Held-to-Maturity (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 USD ($) item | Sep. 30, 2017 USD ($) item
Held-to-Maturity |  |
Carrying Value | $ 18,851,089 | $ 18,851,089
Held-to-Maturity | B Piece bonds |  |
Held-to-Maturity |  |
Remaining of B Piece bond sold to the third party at par | 51.00% | 51.00%
B Piece retained percentage |  | 49.00%
Number of B Piece bonds retained | item | 2 | 2
Weighted average variable interest rate (as a percent) | 3.55% | 3.55%
Weighted average stated maturity (in years) |  | 6 years 1 month 6 days
Weighted average effective interest rate (as a percent) | 13.38% | 13.38%
Face Value |  | $ 28,035,293
Carrying Value | $ 18,851,089 | 18,851,089
Unrealized Gain | 31,908 | 31,908
Estimated Fair Value | 18,882,997 | 18,882,997
Discount value |  | 18,300,000
Impairment charges |  | 0
Interest income | 500,000 | 900,000
Held-to-maturity securities, estimated fiscal year |  |
Within one year | 3,400,000 | 3,400,000
After one year through five years | 11,300,000 | 11,300,000
After five years through ten years | 8,100,000 | 8,100,000
After ten years | $ 5,200,000 | $ 5,200,000

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- Definition Fair value of held-to-maturity debt securities maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f)(3) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803 + Details
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