Note 8 - Debt (Details) - Long-Term Notes Payable (Parentheticals) (USD $)	6 Months Ended	12 Months Ended
Jun. 30, 2014	Dec. 31, 2013
Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest	3.46%	3.46%
Monthly principal installments (in Dollars)	$ 72,917	$ 72,917
Seller Financed Secured Note Payable [Member]
Debt Instrument [Line Items]
Interest	3.46%	3.46%
Semi-annual principal and interest payments (in Dollars)	$ 891,000	$ 891,000
Collateralized by percent of the outstanding stock of Dansensor	65.00%	65.00%

Represents the percentage of outstanding common stock secured for debt.

No definition available.

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- Details

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- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of the required periodic payments applied to principal.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

+ Details

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