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Subordinated Debt | 9 Months Ended
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Sep. 30, 2018
Debt Disclosure [Abstract] |
Subordinated Debt | Subordinated Debt In June 2013, the Company issued a subordinated debenture (the “2021 Debenture”) in the principal amount of $3.0 million. The 2021 Debenture bore a fixed interest rate of 8.00% per year, payable quarterly, and was scheduled to mature on June 28, 2021. The 2021 Debenture could be repaid, without penalty, at any time after June 28, 2016. The Company repaid the 2021 Debenture in full in June 2018. In connection with the 2021 Debenture, the Company also issued a warrant to purchase up to 48,750 shares of common stock at an initial per share exercise price equal to $19.33. The warrant became exercisable on June 28, 2014. On May 4, 2017, the Company issued a net amount of 15,915 shares of common stock pursuant to an exercise by the holder of a warrant to purchase 48,750 shares of common stock at a price of $19.33 per share. The holder satisfied the exercise price by instructing the Company to withhold 32,835 of the shares of common stock in accordance with the warrant’s cashless exercise feature. In October 2015, the Company entered into a term loan in the principal amount of $10.0 million, evidenced by a term note due 2025 (the “2025 Note”). The 2025 Note bears a fixed interest rate of 6.4375% per year, payable quarterly, and is scheduled to mature on October 1, 2025. The 2025 Note is an unsecured subordinated obligation of the Company and may be repaid, without penalty, on any interest payment date on or after October 15, 2020. The 2025 Note is intended to qualify as Tier 2 capital under regulatory guidelines. In September 2016, the Company issued $25.0 million aggregate principal amount of 6.0% Fixed-to-Floating Rate Subordinated Notes due 2026 (the “2026 Notes”) in a public offering. The 2026 Notes initially bear a fixed interest rate of 6.00% per year to, but excluding September 30, 2021, and thereafter a floating rate equal to the then-current three-month LIBOR rate plus 485 basis points. All interest on the 2026 Notes is payable quarterly. The 2026 Notes are scheduled to mature on September 30, 2026. The 2026 Notes are unsecured subordinated obligations of the Company and may be repaid, without penalty, on any interest payment date on or after September 30, 2021. The 2026 Notes are intended to qualify as Tier 2 capital under regulatory guidelines. The following table presents the principal balance and unamortized discount and debt issuance costs for the 2021 Debenture, the 2025 Note and the 2026 Notes as of September 30, 2018 and December 31, 2017.
| September 30, 2018 |  | December 31, 2017
| Principal |  | Unamortized Discount and Debt Issuance Costs |  | Principal |  | Unamortized Discount and Debt Issuance Costs
2021 Debenture | $ | — |  |  | $ | — |  |  | $ | 3,000 |  |  | $ | — |
2025 Note | 10,000 |  |  | (168 | ) |  | 10,000 |  |  | (186 | )
2026 Notes | 25,000 |  |  | (995 | ) |  | 25,000 |  |  | (1,088 | )
Total | $ | 35,000 |  |  | $ | (1,163 | ) |  | $ | 38,000 |  |  | $ | (1,274 | )

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- Definition The entire disclosure for long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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