Note 2 - Trade Receivables, net

12 Months Ended

Dec. 31, 2011

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

(2)   Trade Receivables, net

Trade receivables consisted of the following at December 31, 2011 and 2010:

	2011			2010
Trade receivables	$	18,958		$	18,382
Allowance for doubtful accounts		(2,172	)		(1,788	)
	$	16,786		$	16,594