Note 12 - Commitments and Contingencies (Details) (USD $)	1 Months Ended	12 Months Ended
	Sep. 30, 2004	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Note 12 - Commitments and Contingencies (Details) [Line Items]
Lease Purchase Option	$ 1,600,000
Operating Leases, Rent Expense		1,500,000	1,200,000	1,600,000
Indemnification Agreement [Member]
Note 12 - Commitments and Contingencies (Details) [Line Items]
Other Liabilities		$ 0	$ 0	$ 0
Minimum [Member]
Note 12 - Commitments and Contingencies (Details) [Line Items]
Warranty Term		1 year
Maximum [Member]
Note 12 - Commitments and Contingencies (Details) [Line Items]
Warranty Term		2 years