Note 6 - Share Capital (Details Textual)		12 Months Ended
	Jul. 11, 2014 shares	Dec. 31, 2015 $ / shares shares	Dec. 31, 2014 $ / shares shares	Jul. 10, 2014 shares
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	20
Common Stock, Shares Authorized	12,500,000			250,000,000
Rights Plan [Member] | Series A Preferred Stock [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right		1
Preferred Stock, Par or Stated Value Per Share | $ / shares		$ 0.01
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares		$ 10
Rights Plan [Member]
Common Stock Shareholder Ownership Level Percentage Subject To Penalty		5.00%
Common Stock Owned By Shareholders Percentage		5.00%
Common Stock Additional Shares Percentage		1.00%
Common Stock Shareholder Ownership Level Percentage		5.00%
Common Stock Ownership Penalty Exemption Percentage		5.00%
Number of Rights Authorized		1
Common Stock, Shares Authorized		12,500,000	12,500,000
Preferred Stock, Par or Stated Value Per Share | $ / shares		$ 0.01	$ 0.01