Note 7 Shareholders' Equity Schedule of Stock Option Activity (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 29, 2014	Dec. 31, 2013
Note 7 Shareholders Equity Schedule Of Stock Option Activity Detail
Options outstanding	2,271,923	2,131,622
Options outstanding - weighted average exercise price	$ 6.61	$ 6.99
Options outstanding - weighted average remaining contractual term (years)	3 years 354 days
Options outstanding - aggregate intrinsic value	$ 227
Options granted	252,500
Options granted - weighted average exercise price	$ 3.94
Options exercised	(2,900)
Options exercised - weighted average exercise price	$ 3.69
Options forfeited	(28,630)
Options forfeited - weighted average exercise price	$ 3.95
Options expired	(80,669)
Options expired - weighted average exercise price	$ 7.85
Options vested and expected to vest	2,077,123
Options vested and expected to vest - weighted average exercise price	$ 6.82
Options vested and expected to vest - weighted average remaining contractual term (years)	3 years 328 days
Options vested and expected to vest - aggregate intrinsic value	186
Options Exercisable	1,247,185
Options exercisable - weighted average exercise price	$ 6.14
Options exercisable - weighted average remaining contractual term (years)	3 years 22 days
Options exercisable - aggregate intrinsic value	$ 82