STOCK COMPENSATION - VESTING PERIOD (Details)	9 Months Ended
Sep. 30, 2019 plan
STOCK COMPENSATION
Number of share based compensation plans	3

Represents the number of equity-based compensation plans.

No definition available.

Name:	ktyb_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPlans
Namespace Prefix:	ktyb_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration