Note 7 - Line of Credit, Notes Payable and Liquidity - Notes Payable (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Mar. 18, 2013
Debt Instrument, Interest Rate, Stated Percentage			2.00%
Ending principal	$ 1,242,500	$ 812,500
Discount on notes payable
Short-term Debt [Member] | Non-Related Party [Member]
Ending principal	0	0
Discount on notes payable	0	0
Short-term Debt [Member] | Related Party [Member]
Ending principal	0	0
Discount on notes payable	0	0
Long-term Debt [Member] | Non-Related Party [Member]
Ending principal	337,215	792,500
Discount on notes payable	(455,285)	0
Long-term Debt [Member] | Related Party [Member]
Ending principal	212,336	20,000
Discount on notes payable	$ (237,664)	$ 0
Notes Payable, Matures April 1, 2019 [Member]
Maturity date	Apr. 01, 2019
Debt Instrument, Interest Rate, Stated Percentage	12.00%
Ending principal	$ 450,000
Notes Payable, Matures April 1, 2019 [Member] | Short-term Debt [Member] | Non-Related Party Current [Member]
Ending principal	0
Notes Payable, Matures April 1, 2019 [Member] | Short-term Debt [Member] | Related Party [Member]
Ending principal	0
Notes Payable, Matures April 1, 2019 [Member] | Long-term Debt [Member] | Non-Related Party Current [Member]
Ending principal	0
Notes Payable, Matures April 1, 2019 [Member] | Long-term Debt [Member] | Related Party [Member]
Ending principal	$ 450,000
Notes Payable, Matures April 1, 2017 [Member]
Maturity date		Apr. 01, 2017
Debt Instrument, Interest Rate, Stated Percentage		12.00%
Ending principal		$ 45,000
Notes Payable, Matures April 1, 2017 [Member] | Short-term Debt [Member] | Non-Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 [Member] | Short-term Debt [Member] | Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 [Member] | Long-term Debt [Member] | Non-Related Party [Member]
Ending principal		45,000
Notes Payable, Matures April 1, 2017 [Member] | Long-term Debt [Member] | Related Party [Member]
Ending principal		$ 0
Notes Payable, Matures April 1, 2020 I [Member]
Maturity date	Apr. 01, 2020
Debt Instrument, Interest Rate, Stated Percentage	10.00%
Ending principal	$ 420,000
Notes Payable, Matures April 1, 2020 I [Member] | Short-term Debt [Member] | Non-Related Party [Member]
Ending principal	0
Notes Payable, Matures April 1, 2020 I [Member] | Short-term Debt [Member] | Related Party [Member]
Ending principal	0
Notes Payable, Matures April 1, 2020 I [Member] | Long-term Debt [Member] | Non-Related Party [Member]
Ending principal	420,000
Notes Payable, Matures April 1, 2020 I [Member] | Long-term Debt [Member] | Related Party [Member]
Ending principal	$ 0
Notes Payable, Matures April 1, 2017 II [Member]
Maturity date		Apr. 01, 2017
Debt Instrument, Interest Rate, Stated Percentage		12.00%
Ending principal		$ 137,500
Notes Payable, Matures April 1, 2017 II [Member] | Short-term Debt [Member] | Non-Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 II [Member] | Short-term Debt [Member] | Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 II [Member] | Long-term Debt [Member] | Non-Related Party [Member]
Ending principal		137,500
Notes Payable, Matures April 1, 2017 II [Member] | Long-term Debt [Member] | Related Party [Member]
Ending principal		$ 0
Notes Payable, Matures April 1, 2020 II [Member]
Maturity date	Apr. 01, 2020
Debt Instrument, Interest Rate, Stated Percentage	12.00%
Ending principal	$ 372,500
Notes Payable, Matures April 1, 2020 II [Member] | Short-term Debt [Member] | Non-Related Party [Member]
Ending principal	0
Notes Payable, Matures April 1, 2020 II [Member] | Short-term Debt [Member] | Related Party [Member]
Ending principal	0
Notes Payable, Matures April 1, 2020 II [Member] | Long-term Debt [Member] | Non-Related Party [Member]
Ending principal	372,500
Notes Payable, Matures April 1, 2020 II [Member] | Long-term Debt [Member] | Related Party [Member]
Ending principal	$ 0
Notes Payable, Matures April 1, 2017 III [Member]
Maturity date		Apr. 01, 2017
Debt Instrument, Interest Rate, Stated Percentage		10.00%
Ending principal		$ 120,000
Notes Payable, Matures April 1, 2017 III [Member] | Short-term Debt [Member] | Non-Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 III [Member] | Short-term Debt [Member] | Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 III [Member] | Long-term Debt [Member] | Non-Related Party [Member]
Ending principal		120,000
Notes Payable, Matures April 1, 2017 III [Member] | Long-term Debt [Member] | Related Party [Member]
Ending principal		$ 0
Notes Payable, Matures April 1, 2017 IV [Member]
Maturity date		Apr. 01, 2017
Debt Instrument, Interest Rate, Stated Percentage		10.00%
Ending principal		$ 300,000
Notes Payable, Matures April 1, 2017 IV [Member] | Short-term Debt [Member] | Non-Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 IV [Member] | Short-term Debt [Member] | Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 IV [Member] | Long-term Debt [Member] | Non-Related Party [Member]
Ending principal		300,000
Notes Payable, Matures April 1, 2017 IV [Member] | Long-term Debt [Member] | Related Party [Member]
Ending principal		$ 0
Notes Payable, Matures April 1, 2017 V [Member]
Maturity date		Apr. 01, 2017
Debt Instrument, Interest Rate, Stated Percentage		12.00%
Ending principal		$ 90,000
Notes Payable, Matures April 1, 2017 V [Member] | Short-term Debt [Member] | Non-Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 V [Member] | Short-term Debt [Member] | Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 V [Member] | Long-term Debt [Member] | Non-Related Party [Member]
Ending principal		90,000
Notes Payable, Matures April 1, 2017 V [Member] | Long-term Debt [Member] | Related Party [Member]
Ending principal		$ 0
Notes Payable, Matures April 1, 2017 VI [Member]
Maturity date		Apr. 01, 2017
Debt Instrument, Interest Rate, Stated Percentage		12.00%
Ending principal		$ 100,000
Notes Payable, Matures April 1, 2017 VI [Member] | Short-term Debt [Member] | Non-Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 VI [Member] | Short-term Debt [Member] | Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2017 VI [Member] | Long-term Debt [Member] | Non-Related Party [Member]
Ending principal		100,000
Notes Payable, Matures April 1, 2017 VI [Member] | Long-term Debt [Member] | Related Party [Member]
Ending principal		$ 0
Notes Payable, Matures April 1, 2018 [Member]
Maturity date		Apr. 01, 2018
Debt Instrument, Interest Rate, Stated Percentage		12.00%
Ending principal		$ 20,000
Notes Payable, Matures April 1, 2018 [Member] | Short-term Debt [Member] | Non-Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2018 [Member] | Short-term Debt [Member] | Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2018 [Member] | Long-term Debt [Member] | Non-Related Party [Member]
Ending principal		0
Notes Payable, Matures April 1, 2018 [Member] | Long-term Debt [Member] | Related Party [Member]
Ending principal		$ 20,000