Note 4. Property, Equipment and Improvements (Detail) (USD $)	Sep. 28, 2014	Dec. 31, 2013
Note 4. Property Equipment And Improvements Detail
Land	$ 123,000	$ 123,000
Buildings and leasehold improvements	7,565,000	7,412,000
Machinery and equipment	47,889,000	47,405,000
Furniture and fixtures	1,954,000	1,866,000
Computer hardware and software	4,288,000	4,247,000
Construction in progress	2,160,000	1,073,000
Total cost	63,979,000	62,126,000
Less-accumulated depreciation	(54,082,000)	(51,924,000)
Net property, equipment and improvements	$ 9,897,000	$ 10,202,000