Intangible Assets (Schedule Of Amortization Expense For Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Intangible Assets [Abstract]
Patents	$ 34	$ 41

The aggregate expense charged against earnings to allocate the cost of intangible assets from patents (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

No definition available.

Name:	cybe_AmortizationOfIntangibleAssetsPatents
Namespace Prefix:	cybe_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration