Note 6 - Accounts Payable and Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2016

Payables and Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

Account	March 31, 2016		December 31, 2015
Accounts payable	$	652,903	$	515,764
Accrued payroll and related costs		786,281		473,108
Other accrued expenses		79,600		105,562
Accrued interest		221,607		862,836
Total accounts payable and accrued expenses	$	1,740,391	$	1,957,270