PENDING ACQUISITION (Details) (Parent Company, USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended
Jan. 16, 2015	Jan. 16, 2015
Exchange for each issued and outstanding share of Madison common stock by Kentucky Bancshares	1.1927	1.1927
Number of trading days	20 days
Average common stock price (in dollars per share)	$ 27.25ktyb_AverageCommonStockPricePerShare	$ 27.25ktyb_AverageCommonStockPricePerShare
Madison
Transaction value	$ 7.2	$ 7.2
Common stock price in transaction (in dollars per share)	$ 32.50	$ 32.50

Represents the information pertaining to average common stock price per share.

No definition available.

Name:	ktyb_AverageCommonStockPricePerShare
Namespace Prefix:	ktyb_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Represents the information pertaining to average common stock trading days.

No definition available.

Name:	ktyb_AverageCommonStockTradingDays
Namespace Prefix:	ktyb_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the information pertaining to common stock price per share in share exchange transaction.

No definition available.

Name:	ktyb_CommonStockPricePerShareInExchangeOfStockTransaction
Namespace Prefix:	ktyb_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Represents the information pertaining to exchange for each issued and outstanding share due to acquisition.

No definition available.

Name:	ktyb_ExchangeOfStockForAcquisitionSharesIssued
Namespace Prefix:	ktyb_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Represents the information pertaining to transaction value in plan of share exchange agreement.

No definition available.

Name:	ktyb_ExchangeOfStockTransactionValue
Namespace Prefix:	ktyb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant