Note 2 - Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Note 2 - Significant Accounting Policies (Details) [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 0	$ 0
Product Warranty Accrual	104,000	63,000
Inventory Write Off (Member)
Note 2 - Significant Accounting Policies (Details) [Line Items]
Cost of Goods Sold	$ 46,000	$ 45,000
Minimum [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Stock Rotation Period	15 months
Warranty Period	1 year
Maximum [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Stock Rotation Period	18 months
Warranty Period	2 years