Note 9 - Earnings per Share (Details)	Dec. 31, 2013	Jun. 30, 2013
Earnings Per Share [Abstract]
Common Stock Equivalents Outstanding	0	0

The number of common stock equivalents outstanding.

No definition available.

Name:	gyro_CommonStockEquivalentsOutstanding
Namespace Prefix:	gyro_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant