Schedule of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Secured note	$ 0	$ 250
Wyoming Industrial Development Revenue Bond Loan Current	3,271	3,291
Finance leases and other Current	38	41
Current portion of loans and borrowings	3,309	3,582
Convertible debentures	16,198	14,624
Secured note	0	224
Wyoming Industrial Development Revenue Bond Loan Noncurrent	13,108	14,078
Finance leases and other Noncurrent	0	11
Total long-term loans and borrowings	$ 29,306	$ 28,937

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Wyoming Industrial Development Revenue Bond Loan Current

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Wyoming Industrial Development Revenue Bond Loan Noncurrent

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No definition available.

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- Definition

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

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Carrying value as of the balance sheet date of the portion of long-term, collateralized debt obligations due within one year or the operating cycle, if longer. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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-Publisher FASB
-Name Accounting Standards Codification
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Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets.

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