Note 15 - Concentrations of Credit Risk (Details Textual) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash	$ 60,190	$ 570,086	$ 2,876,386
Cash, Uninsured Amount	0	303,983
Amounts Representation by Customer Who Accounted for Greater than 10 of Total Accounts Receivable	$ 13,300	$ 40,818

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash
-URI http://asc.fasb.org/extlink&oid=6506951

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_Cash
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant