Note 3 - Earnings (Loss) Per Share - Reconciliation of Anti-dilutive Securities (Details) - shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Anti-dilutive Security (in shares)	43,775,016	27,356,310
Shares Of Preferred Stock [Member]
Anti-dilutive Security (in shares)	0	3,277,229
Employee Stock Option [Member]
Anti-dilutive Security (in shares)	275,000	125,000
Warrant [Member]
Anti-dilutive Security (in shares)	27,860,000	22,900,000
Convertible Debt Securities [Member]
Anti-dilutive Security (in shares)	15,490,000	0
Shares Issuable For Accrued Interest [Member]
Anti-dilutive Security (in shares)	150,016	1,054,081