Note 14 - Subsequent Events (Details Textual) - USD ($)	Jul. 31, 2021	Jul. 30, 2021
Flexo Universal [Member]
Proceeds From Redemption of Equity Interests	$ 500,000	$ 100,000

The amount of cash inflow from the redemption of equity interests.

No definition available.

Name:	ctib_ProceedsFromRedemptionOfEquityInterests
Namespace Prefix:	ctib_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration