Note 1. SIGNIFICANT ACCOUNTING POLICIES (Tables)

3 Months Ended

Mar. 28, 2014

Accounting Policies [Abstract]

Schedule of Inventory, Current [Table Text Block]

	March 28,			December 31,
	2014			2013
Raw materials	$	6,968		$	5,803
Finished goods		10,603			9,101
Inventory reserves		(658	)		(534	)
LIFO reserve		(4,523	)		(4,366	)
	$	12,390		$	10,004

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

	Three Months Ended
	March 28,		March 29,
	2014		2013
Stock appreciation right expense	$	44	$	79

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	March 28, 2014	March 29, 2013
Expected term (years)	2.4 - 4.6	0.9 - 4.6
Volatility	320.2% - 374.3%	290.0% - 348.6%
Risk-free interest rate	0.7% - 1.6%	0.1% - 0.7%