Note 14 - Subsequent Event (Details) (Subsequent Event [Member], ITATS Program [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
	Jan. 31, 2014
Subsequent Event [Member] | ITATS Program [Member]
Note 14 - Subsequent Event (Details) [Line Items]
Subsequent Event, Description	In January 2014, the Company negotiated a $2.14 million contract modification on the ITATS program. The ITATS product ("AN/ARM-206") is a fully automated TACAN test set for use in U.S. Navy Intermediate Level repair locations. This contract modification entails the sale of certain Intellectual Property ("IP") to the U.S. Navy plus the sale of ancillary test support equipment and a modest increase in the recurring price to reflect several product enhancements. A portion of the IP sale proceeds will go to the Company's subcontractor on this program. This contract modification is expected to result in a pre-tax benefit of about $1.2 million over the next two fiscal quarters. The sale of the IP for the ITATS program should have no impact on sales of these units to the U.S. Navy or other customers. Management believes that the sale of the ITATS IP should improve the Company's balance sheet and liquidity position and help facilitate the commencement of the ITATS full rate production this summer.
Contract Modification, Amount	$ 2.14
Pre-Tax Benefit Expected Over Next Six Months	$ 1.2