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Geographic Segment Data (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Sales to outside customers | $ 49,543,000 | $ 47,171,000
Total Assets | 37,747,000 | 33,616,000
United States [Member] |  |
Sales to outside customers | 35,527,000 | 34,657,000
Total Assets | 27,708,000 | 25,302,000
United Kingdom [Member] |  |
Sales to outside customers | 2,427,000 | 1,838,000
Total Assets | 1,133,000 | 734,000
Europe [Member] |  |
Sales to outside customers | 817,000 | 376,000
Total Assets | 1,057,000 | 464,000
Mexico [Member] |  |
Sales to outside customers | 10,772,000 | 10,300,000
Total Assets | $ 7,849,000 | $ 7,116,000

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets pertaining to subsidiaries. + References No definition available. + Details
Name: | ctib_AssetsPertainingToSubsidiaries
Namespace Prefix: | ctib_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregate revenue during the period from sale of goods to outside customers in the normal course of business. + References No definition available. + Details
Name: | ctib_SalesToOutsideCustomers
Namespace Prefix: | ctib_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration