Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)		12 Months Ended
Sep. 01, 2015	Dec. 31, 2019
The Corporation [Member]
Maximum Value of Asset to Effect Dissolution	$ 1,000,000	$ 1,000,000

The maximum value where in the Amended and restated limited liability company agreement may effect dissolution upon the majority common interest or boards discretion.

No definition available.

Name:	gyro_MaximumValueOfAssetToEffectDissolution
Namespace Prefix:	gyro_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration