Note 8 - Common Stock (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001
Common Stock, Shares, Outstanding	16,603,559	16,501,500
Common Stock, Shares, Issued	16,603,559	16,501,500
Dividends, Common Stock	$ 0