Note 9 - Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2011
Note 9 - Commitments and Contingencies (Details) [Line Items]
Lease Purchase Option				$ 1,800,000
Operating Leases, Rent Expense	1,200,000	1,600,000	2,100,000
Indemnification Agreement [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Other Liabilities	$ 0	$ 0	$ 0
Minimum [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Warranty Term	1 year
Maximum [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Warranty Term	2 years