Balances with Related Parties (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Related Party Transactions [Abstract]
Due from affiliated companies	$ 55		$ 75
Interest rate, related party	5.50%	5.50%

Amounts due from (to) related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

No definition available.

Name:	camt_DueFromToRelatedParties
Namespace Prefix:	camt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant