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Income Taxes Accumulated Accrued Interest Receivable (Payable) Related to Income Taxes (Details) (USD $) | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Income Taxes [Line Items] |  |
Deferred Tax Assets, Valuation Allowance | $ 7,200,000 |
PNMR [Member] |  |
Income Taxes [Line Items] |  |
Accumulated accrued interest receivable | 4,048,000 | 3,796,000
Accumulated accrued interest payable | (1,118,000) | (1,108,000)
Public Service Company of New Mexico [Member] |  |
Income Taxes [Line Items] |  |
Accumulated accrued interest receivable | 4,048,000 | 3,796,000
Accumulated accrued interest payable | (24,000) | (23,000)
Texas-New Mexico Power Company [Member] |  |
Income Taxes [Line Items] |  |
Accumulated accrued interest receivable | 0 | 0
Accumulated accrued interest payable | $ (118,000) | $ (116,000)

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- Definition Unrecognized Tax Benefit, Accumulated Accrued Interest Payable + References No definition available. + Details
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- Definition Unrecognized Tax Benefit, Accumulated Accrued Interest Receivable + References No definition available. + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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