Note 5 - Permit and Other Intangible Assets (Details Textual) |
12 Months Ended | |
|---|---|---|
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Dec. 31, 2016
USD ($)
|
Dec. 31, 2015
USD ($)
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|
| Finite-Lived Intangible Assets, Net | $ 1,838,000 | $ 2,238,000 |
| Amortization of Intangible Assets | $ 448,000 | 471,000 |
| Medical [Member] | ||
| Number of Permits | 0 | |
| Services [Member] | ||
| Number of Permits | 0 | |
| PCB Permit [Member] | ||
| Number of Definite-lived Permits | 1 | |
| Finite-Lived Intangible Asset, Useful Life | 10 years | |
| Finite-Lived Intangible Assets, Net | $ 117,000 | $ 172,000 |
| X | ||||||||||
- Definition Represents the number of definite lived permits. No definition available.
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| X | ||||||||||
- Definition Represents the number of operating permits having definite or indefinite lives. No definition available.
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| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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| X | ||||||||||
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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