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Note 6 - Income Taxes (Details) - Deferred Tax Assets And Liabilities (USD $) | Dec. 31, 2013 | Dec. 31, 2012
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Deferred Tax Assets And Liabilities [Abstract] |  |
Accounts receivable, allowance for doubtful accounts | $ 63,000 | $ 62,000
Reserves not deductible until paid | 236,000 | 193,000
Net operating loss carryforwards |  |
Federal | 1,851,000 | 2,030,000
State | 604,000 | 527,000
Federal Tax Credit | 296,000 | 249,000
Capital loss carryforward | 10,000 | 10,000
Other | 31,000 | 5,000
Gross deferred tax assets | 3,091,000 | 3,076,000
Less valuation allowance | (942,000) | (996,000)
Deferred tax assets net of valuation allowance | 2,149,000 | 2,080,000
Property and equipment | (2,141,000) | (2,072,000)
Other | 0 | 0
Gross deferred tax liabilities | (2,141,000) | (2,072,000)
Net deferred tax asset | $ 8,000 | $ 8,000

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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