Business combination long term debt fair value premium.

No definition available.

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- Definition

Debt instrument non callable period.

+ References

No definition available.

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- Definition

Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

+ References

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Subparagraph (SX 210.5-02.22(a)(2))
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-SubTopic 10
-Section 50
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-Subparagraph (bbb)(2)
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- Definition

Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Description of debt redemption features under terms of the debt agreement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

+ Details

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- Definition

The cash inflow from a borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in liquidation of the entity's assets or underlying collateral.

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-SubTopic 10
-Section 45
-Paragraph 14
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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

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Subordinated Debt (Narrative) (Details) - Subordinated Debt [Member] - USD ($)			1 Months Ended	6 Months Ended
	Dec. 19, 2017	Dec. 09, 2015	Jul. 31, 2018	Jun. 30, 2019	Dec. 31, 2018
Subordinated Notes Due 2025 [Member]
Subordinated debt issuance		$ 7,500,000
Debt instrument, maturity date				Dec. 09, 2025
Debt instrument term				2015 Notes bear interest at a rate of 5.15% per year for the first five years and then float at the Wall Street Journal’s Prime Rate plus 0.50%, provided that the interest rate applicable to the outstanding principal balance will at no time be less than 4.0%.
Debt instrument, interest rate, effective percentage		5.15%
Debt instrument, payment terms				Interest is payable quarterly in arrears on January 1, April 1, July 1 and October 1 of each year, beginning on January 1, 2016.
Debt instrument, redemption, description				The 2015 Notes will mature on December 9, 2025 and are redeemable in whole or in part, without premium or penalty, at any time on or after December 9, 2020, and prior to December 9, 2025. Additionally, Mid Penn may redeem the 2015 Notes in whole at any time, or in part from time to time, upon at least 30 days’ notice if: (i) a change or prospective change in law occurs that could prevent Mid Penn from deducting interest payable on the 2015 Notes for U.S. federal income tax purposes; (ii) an event occurs that precludes the 2015 Notes from being recognized as Tier 2 capital for regulatory capital purposes; or (iii) Mid Penn becomes required to register as an investment company under the Investment Company Act of 1940, as amended, in each case at 100% of the principal amount of the 2015 Notes, plus accrued and unpaid interest thereon to but excluding the date of redemption.
Unamortized debt issuance cost				$ 129,000	$ 143,000
Subordinated Notes Due 2025 [Member] \| WSJ Prime Rate [Member]
Debt instrument, basis spread on variable rate		0.50%
Subordinated Notes Due 2025 [Member] \| Maximum [Member] \| WSJ Prime Rate [Member]
Debt instrument, interest rate, effective percentage		4.00%
Subordinated Notes Due 2025 [Member] \| First Priority Financial Corp. [Member]
Subordinated debt acquired			$ 9,500,000
Subordinated debt fair value premium			247,000
Debt instrument, issuance date				Nov. 13, 2015
Subordinated debt issuance			$ 9,500,000
Debt instrument, maturity date				Nov. 30, 2025
Debt instrument, interest rate, effective percentage			7.00%
Debt instrument non-callable period			5 years
Debt instrument term				The Notes are non-callable for an initial period of five years and include provisions for redemption pricing between 101.5% and 100.5% of the liquidation value if called after five years but prior to the stated maturity date
Subordinated Notes Due 2025 [Member] \| First Priority Financial Corp. [Member] \| Maximum [Member]
Debt instrument redemption price percentage			101.50%
Subordinated Notes Due 2025 [Member] \| First Priority Financial Corp. [Member] \| Minimum [Member]
Debt instrument redemption price percentage			100.50%
Subordinated Notes Due 2028 [Member]
Subordinated debt issuance	$ 10,000,000
Debt instrument, maturity date				Jan. 01, 2028
Debt instrument term				The 2017 Notes bear interest at a rate of 5.25% per year for the first five years and then float at the Wall Street Journal’s Prime Rate plus 0.50%, provided that the interest rate applicable to the outstanding principal balance will at no times be less than 5.0%.
Debt instrument, interest rate, effective percentage	5.25%
Debt instrument, payment terms				Interest is payable semi-annually in arrears on January 15 and July 15 of each year, beginning on July 15, 2018, for the first five years after issuance and will be payable quarterly in arrears thereafter on January 15, April 15, July 15, and October 15.
Debt instrument, redemption, description				The 2017 Notes will mature on January 1, 2028 and are redeemable in whole or in part, without premium or penalty, at any time on or after December 21, 2022, and prior to January 1, 2028. Additionally, Mid Penn may redeem the 2017 Notes in whole at any time, or in part from time to time, upon at least 30 days’ notice if: (i) a change or prospective change in law occurs that could prevent Mid Penn from deducting interest payable on the 2017 Notes for U.S. federal income tax purposes; (ii) an event occurs that precludes the 2017 Notes from being recognized as Tier 2 capital for regulatory capital purposes; or (iii) Mid Penn becomes required to register as an investment company under the Investment Company Act of 1940, as amended. In the event of a redemption described in the previous sentence, Mid Penn will redeem the 2017 Notes at 100% of the principal amount of the 2017 Notes, plus accrued and unpaid interest thereon to but excluding the date of redemption.
Unamortized debt issuance cost				$ 129,000	$ 143,000
Subordinated Notes Due 2028 [Member] \| WSJ Prime Rate [Member]
Debt instrument, basis spread on variable rate	0.50%
Subordinated Notes Due 2028 [Member] \| Maximum [Member] \| WSJ Prime Rate [Member]
Debt instrument, interest rate, effective percentage	5.00%