Allowance for Loan Losses to Nonperforming Loans Minimum Under Debt Covenant

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Distributions on Capital Securities, Deferred, Number of Consecutive Semiannual Periods

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- Definition

Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Fixed Rate Initial Period

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- Definition

Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Maturities Period

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- Definition

Fixed charge coverage ratio minimum required by debt covenant

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Interest rate over 3-Month LIBOR on capital securities

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- Definition

Nonperforming Assets to Tangible Capital plus Allowance for Loan Losses Maximum Under Debt Covenant

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- Definition

Repurchase Agreements, Call Option Features at Buyer Discretion, Initial Call Period

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Repurchase Agreements, Maturities Period

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- Definition

Total Risk-Based Capital Ratio Minimum Under Debt Covenant

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- Definition

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

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- Definition

Gross amount of debt extinguished.

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- Definition

States the weighted average interest rate applicable to the advances from the Federal Home Loan Bank outstanding as of the Balance Sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

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-Publisher SEC

-Name Industry Guide

-Number 3

-Section VII

-Subsection 1

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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-Publisher FASB

-Name Accounting Standards Codification

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Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.

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-Topic 210

-SubTopic 10

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-Name Regulation S-X (SX)

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-Section 03

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Total assets that cannot be used for operating purposes because of contract or regulatory requirements that are in effect for a period that extends beyond one year.

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The cash outflow for a borrowing supported by a written promise to pay an obligation.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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Long-Term Borrowings (Narrative) (Details)			9 Months Ended
Long-Term Borrowings (Narrative) (Details)	Jul. 24, 2015 USD ($)	Mar. 06, 2015 USD ($) semi_annual_period	Sep. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)	Aug. 04, 2014 USD ($)	Dec. 18, 2012 USD ($)
Unadvanced revolving line of credit					$ 10,000,000	$ 5,000,000
Term note payable (parent company)			$ 0	$ 14,369,000		$ 24,000,000
Weighted- Average Rate			0.00%	3.50%	3.50%	3.80%
Total risk-based capital ratio minimum under debt covenant					12.50%
Nonperforming assets to tangible capital plus allowance for loan losses maximum under debt covenant					20.00%
Fixed charge coverage ratio minimum required by debt covenant					125.00%
Other restricted assets					$ 2,000,000
Allowance for loan losses to nonperforming loans minimum under debt covenant					70.00%
Repayments of notes payable	$ 12,000,000
Losses on extinguishment of debt			$ 520,000
Subordinated debt			$ 6,685,000	$ 0
Interest rate on capital securities		1.50%
Minimum
Repurchase agreements, maturities period			5 years
Repurchase agreements, call option features at buyer discretion, initial call period			3 months
Maximum
Repurchase agreements, maturities period			10 years
Repurchase agreements, call option features at buyer discretion, initial call period			5 years
Distributions on capital securities, deferred, number of consecutive semi-annual periods \| semi_annual_period		20
Federal Home Loan Bank Advances, Fixed Rate, Amortizing [Member]
Weighted- Average Rate			2.61%	2.13%
Federal Home Loan Bank Advances, Fixed Rate, Amortizing [Member] \| Minimum
Federal Home Loan Bank, advances, general debt obligations, disclosures, maturities period			10 years
Federal Home Loan Bank Advances, Fixed Rate, Amortizing [Member] \| Maximum
Federal Home Loan Bank, advances, general debt obligations, disclosures, maturities period			20 years
Federal Home Loan Bank Advances, Fixed Rate, Putable Non-amortizing [Member]
Weighted- Average Rate			3.32%	3.30%
Federal Home Loan Bank Advances, Fixed Rate, Putable Non-amortizing [Member] \| Minimum
Federal Home Loan Bank, advances, general debt obligations, disclosures, maturities period			10 years
Federal Home Loan Bank Advances, Fixed Rate, Putable Non-amortizing [Member] \| Maximum
Federal Home Loan Bank, advances, general debt obligations, disclosures, maturities period			20 years
Federal Home Loan Bank Advances, Convertible Rate Advances [Member] \| Minimum
Federal Home Loan Bank, advances, general debt obligations, disclosures, fixed rate initial period			3 months
Federal Home Loan Bank Advances, Convertible Rate Advances [Member] \| Maximum
Federal Home Loan Bank, advances, general debt obligations, disclosures, fixed rate initial period			5 years
Repayments of debt [Member] \| Federal Home Loan Bank Advances, Fixed Rate, Putable Non-amortizing [Member]
Extinguishment of debt, amount			$ 52,100,000
Weighted- Average Rate			1.49%
NB&T Financial Group, Inc.
Subordinated debt		$ 6,600,000