Note 6 - Accounts Payable and Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

	December 31,
	2012		2011
Accounts payable	$	1,924	$	2,266
Accrued salaries, and other employee benefits		529		1,013
Accrued warranty (Note 12)		50		50
Accrued medical costs		197		257
Other		400		261
	$	3,100	$	3,847