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Note 12 - Commitments - Other Commitments (Details) - USD ($)		Dec. 31, 2020	Dec. 31, 2019
Contractual obligation		$ 431,716	$ 431,716
Management Employment Agreements with Bonus and Severance Commitment Contingencies [Member]
Contractual obligation	[1]	350,000	350,000
Other Employee Severance Commitment Contingencies [Member]
Contractual obligation		$ 81,716	$ 81,716
[1] Excludes Retention Bonus Payments

X

- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

No definition available.

+ Details

Name:	us-gaap_OtherCommitment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_OtherCommitmentsAxis=gyro_ManagementEmploymentAgreementsWithBonusAndSeveranceCommitmentContingenciesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_OtherCommitmentsAxis=gyro_OtherEmployeeSeveranceCommitmentContingenciesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: