Note 4 - Investments (Details) (NKD Enterprises LLC [Member], USD $)	Dec. 31, 2014	Dec. 31, 2013
NKD Enterprises LLC [Member]
Note 4 - Investments (Details) [Line Items]
Equity Method Investment, Ownership Percentage	25.50%	25.50%
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity (in Dollars)	$ 164,000

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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