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Note 9 - Discontinued Operations (Details Textual) |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
May 02, 2016 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
Number of Previously Shut Down Locations |  |  |  | 2 |  |
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent |  | $ (160,000) | $ (264,000) | $ (291,000) | $ (431,000) |
Discontinued Operation, Tax Effect of Discontinued Operation |  | 0 | 0 | 0 | 0 |
Disposal Group, Including Discontinued Operation, Revenue |  | 0 | $ 0 | 0 | $ 0 |
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment |  | 55,385,000 |  | 55,385,000 |  | $ 53,323,000
PFMI [Member] |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration, Installment Payment | $ 7,250 |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration, Remaining Balance |  | 302,000 |  | 302,000 |  |
Disposal Group, Including Discontinued Operation, Consideration, After Closing | $ 375,000 |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration, Number of Monthly Installment Payments | 60 |  |  |  |  |
PFMI [Member] | Current Assets Related to Discontinued Operations [Member] |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration, Remaining Balance |  | 70,000 |  | 70,000 |  |
PFMI [Member] | Other Assets Related to Discontinued Operations [Member] |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration, Remaining Balance |  | 232,000 |  | 232,000 |  |
Not Held for Sale [Member] |  |  |  |  |  |
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment |  | $ 10,000 |  | $ 10,000 |  | $ 10,000

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32672-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721525-107759 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721523-107759 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=79507043&loc=d3e38679-109324 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5C -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721675-107760 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=65878427&loc=d3e1012-107759 + Details
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