Note 7 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Financial Liabilities	$ (479)	$ (331)
Foreign Exchange Forward [Member]
Financial Liabilities	(479,000)	(331,000)
Fair Value, Inputs, Level 1 [Member]
Financial Liabilities
Fair Value, Inputs, Level 1 [Member] | Foreign Exchange Forward [Member]
Financial Liabilities
Fair Value, Inputs, Level 2 [Member]
Financial Liabilities	(479)	(331)
Fair Value, Inputs, Level 2 [Member] | Foreign Exchange Forward [Member]
Financial Liabilities	(479,000)	(331,000)
Fair Value, Inputs, Level 3 [Member]
Financial Liabilities
Fair Value, Inputs, Level 3 [Member] | Foreign Exchange Forward [Member]
Financial Liabilities