Note 3 - Earnings (Loss) Per Share - Computation of Diluted Earnings Per Share (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Basic EPS, Income (loss) numerator	$ 101,880	$ 2,404,498
Weighted Average Number of Shares Outstanding, Basic	145,868,227	96,645,482
Basic EPS, Per-share amount (in dollars per share)	$ 0	$ 0.02
Effect of dilutive securities, Income (loss) numerator	$ 0	$ 43,316
Effect of dilutive securities, Shares denominator (in shares)	294,200	16,900,259
Effect of dilutive securities, Per-share amount (in dollars per share)	$ 0	$ 0
Diluted EPS, Income (loss) numerator	$ 101,880	$ 2,447,814
Diluted EPS, Shares denominator (in shares)	146,162,427	113,545,741
Diluted EPS (in dollars per share)	$ 0	$ 0.02