Note 2 - Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Provision for Doubtful Accounts	$ 0	$ 0
Inventory Write-down	344	311
Depreciation	524	401
Foreign Currency Transaction Gain (Loss), before Tax	$ (44)	$ (4)
Thermal Products and Mechanical Products [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Equipment Leased to Customers, Initial Term	6 months
Minimum [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	one
Maximum [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	ten