Note 6 - Stock-Based Compensation (Details) - Stock Option Activity (2005 Stock Option Plan [Member], USD $)	6 Months Ended
	Jun. 30, 2014		Dec. 30, 2013
2005 Stock Option Plan [Member]
Note 6 - Stock-Based Compensation (Details) - Stock Option Activity [Line Items]
Options outstanding			391,710
Options, weighted average exercise price			$ 9.34
Options, weighted average contractual term	2 years 18 days
Options, aggregate intrinsic value		[1]
Exercisable at June 30, 2014	384,560
Exercisable at June 30, 2014	$ 9.35
Exercisable at June 30, 2014	2 years 18 days
Exercisable at June 30, 2014		[1]
Forfeited	(7,150)
Forfeited	$ 10.00
Options outstanding	384,560		391,710
Options, weighted average exercise price	$ 9.35		$ 9.34
Options, weighted average contractual term	2 years 18 days

[1] The aggregate intrinsic value of a stock option in the table above represents the total pre-tax intrinsic value (the amount by which the current market value of the underlying stock exceeds the exercise price of the option) that would have been received by the option holders had all option holders exercised their options on June 30, 2014.