Note 7 - Debt: Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Long-term Debt	$ 1,975	$ 2,174
Current portion of long-term debt	(211)	(199)
Long-term debt, net of current portion	1,764	1,975
First Mortgage Note Payable
Debt Instrument, Periodic Payment	$ 23
Debt Instrument, Interest Rate, Effective Percentage	5.75%
Debt Instrument, Interest Rate Terms	payment and rate subject to adjustment every 3 years, next adjustment January 14, 2019
Long-term Debt	$ 1,611	1,789
Second Mortgage Note Payable
Debt Instrument, Periodic Payment	$ 4
Debt Instrument, Interest Rate, Effective Percentage	5.75%
Debt Instrument, Interest Rate Terms	payment and rate subject to adjustment every 5 years, next adjustment October 1, 2018
Long-term Debt	$ 364	$ 385

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 210
-SubTopic 10
-Section S99
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-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 FASB
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-SubTopic 470
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-SubTopic 210
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-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher FASB
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-Section S99
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-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Section S99
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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