Note 3 - Accrued Expenses - Accrued Expenses (Details) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Accrued commissions	$ 192,553	$ 221,837
Reserve for merchant losses	172,832	172,832
Other accrued expenses	326,124	192,769
Accrued taxes	39,722	38,469
Accrued salaries	76,590	77,415
Total accrued expenses	$ 807,821	$ 703,322