Note 7 - Bank Lines of Credit and Other Debt (Detail) - Schedule of Interest Expense Incurred on Bank Loans, Lines of Credit and Capital Leases (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Interest expense	$ 65	$ 56	$ 140	$ 71