Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2015	Dec. 31, 2014
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)	3.0
Customer 1 [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member]
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage		82.00%
Customer 1 [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member]
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage		78.00%
Customer 1 and 2 [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member]
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage	34.00%
Customer 1, 2 and 3 [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member]
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage			79.00%
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Number of Customers	2	1
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Number of Customers		1	3
Minimum [Member]
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Standard Product Warranty Term		1 year
Maximum [Member]
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Standard Product Warranty Term		5 years