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The maximum month end balance available to long-term debt.

No definition available.

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Namespace Prefix:	fncb_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Weighted average interest rate of long-term debt outstanding calculated over time.

No definition available.

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Weighted average interest rate of long-term debt outstanding calculated at point in time.

No definition available.

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Namespace Prefix:	us-gaap_
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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Weighted average interest rate of short-term debt outstanding calculated at point in time.

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Data Type:	num:percentItemType
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Weighted average interest rate of short-term debt outstanding calculated over time.

No definition available.

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Data Type:	num:percentItemType
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Period Type:	duration

For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period.

No definition available.

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Namespace Prefix:	us-gaap_
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For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, maximum month-end borrowings during the period.

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