Note 5 - Common Stock Options - Stock Option Activity (Details)	9 Months Ended
	Sep. 30, 2016 $ / shares shares
Outstanding, options (in shares) | shares	8,568
Outstanding, price range (in dollars per share) | $ / shares	$ 0.95
Granted, options (in shares) | shares
Granted, price range (in dollars per share) | $ / shares
Cancelled/Expired, options (in shares) | shares
Cancelled/Expired, price range (in dollars per share) | $ / shares
Exercised, options (in shares) | shares
Exercised, price range (in dollars per share) | $ / shares
Outstanding, options (in shares) | shares	8,568
Outstanding, price range (in dollars per share) | $ / shares	$ 0.95
Exercisable March 31, 2016, options (in shares) | shares	8,568
Exercisable March 31, 2016, price range (in dollars per share) | $ / shares	$ 0.95