Note 13 - Employee Equity Incentive Plans (Details) - Status of Non-vested Shares - $ / shares	Dec. 31, 2015	Dec. 31, 2014
Status of Non-vested Shares [Abstract]
Nonvested shares at January 1, 2015	250,000	275,000
Nonvested shares at January 1, 2015	$ 0.23	$ 0.17
Nonvested shares at December 31, 2015	250,000	275,000
Nonvested shares at December 31, 2015	$ 0.23	$ 0.17