Note 13 - Commitments and Contingencies (Details) - The Accrual for Warranty Claims (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2012
The Accrual for Warranty Claims [Abstract]
Beginning balance - January 1,	$ 1,537	$ 1,537	$ 1,537
Provision charged to warranty expense	119
Less: warranty claims	(119)
Ending balance - September 30,	1,537	1,537	1,537
Current portion of warranty liability	200	200
Non-current portion of warranty liability	$ 1,337	$ 1,337