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Note 7 - Income Taxes (Details)	12 Months Ended
Note 7 - Income Taxes (Details)	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Excise Tax Percentage	100.00%

X

- Definition

The excise tax percentage.

+ References

No definition available.

+ Details

Name:	gyro_ExciseTaxPercentage
Namespace Prefix:	gyro_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration