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Note 8 - Discontinued Operations and Divestitures (Details Textual) |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 07, 2015 USD ($) | Sep. 29, 2015 USD ($) | Jul. 02, 2015 USD ($) | Jun. 04, 2015 USD ($) | Aug. 14, 2014 USD ($) | Jul. 29, 2014 USD ($) | Jun. 30, 2014 USD ($) | Dec. 31, 2015 USD ($) | Jun. 30, 2015 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Aug. 04, 2015 USD ($)
PFSG [Member] | PFSG Facility Fire Damage [Member] |  |  |  |  |  |  |  |  |  |  |  |
Maximum Deductible Amount in Insurance for General Liability |  |  |  |  | $ 300,000 |  |  |  |  |  |  |
Proceeds from Insurance Settlement, Investing Activities |  |  |  |  |  |  | $ 3,850,000 |  |  |  |  |
Disposal Group, Including Discontinued Operation, Gain (Loss) on Insurance Settlement |  |  |  |  |  |  |  |  |  |  | $ 3,842,000 |
PFSG [Member] | Interest Expense [Member] | Arbitration with Contractor [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Loss in Period |  |  |  |  |  |  |  | $ 400,000 |  |  |  |
PFSG [Member] | Arbitration with Contractor [Member] | Interest of Unpaid Invoices [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  |  |  |  |  | 600,000 |  |  |  |
Loss Contingency, Damages Awarded, Value | $ 400,000 |  |  |  |  |  |  |  |  |  |  |
PFSG [Member] | Arbitration with Contractor [Member] | Contract Penalties [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  |  |  |  |  | 800,000 |  |  |  |
PFSG [Member] | Arbitration with Contractor [Member] | Attorney Fees [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  |  |  |  |  | 500,000 |  |  |  |
Loss Contingency, Damages Awarded, Value | 125,000 |  |  |  |  |  |  |  |  |  |  |
PFSG [Member] | Arbitration with Contractor [Member] | Unpaid Invoices [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Awarded, Value | 747,000 |  |  |  |  |  |  |  |  |  |  |
PFSG [Member] | Arbitration with Contractor [Member] | Administrative Fees [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Awarded, Value | 6,000 |  |  |  |  |  |  |  |  |  |  |
PFSG [Member] | Arbitration with Contractor [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  |  |  |  |  | 1,400,000 |  |  |  |
Loss Contingency, Damages Awarded, Value | $ 1,278,000 |  |  |  |  |  |  |  |  |  |  |
Loss Contingency Accrual |  |  |  |  |  |  |  | 871,000 |  | $ 871,000 |  |
Loss Contingency, Loss in Period |  |  |  |  |  |  |  | 407,000 |  |  |  |
PFSG [Member] |  |  |  |  |  |  |  |  |  |  |  |
Tangible Asset Impairment Charges |  |  |  |  |  |  |  |  |  |  | 723,000 |
Payments for Hazardous Waste Management and Permit Violations |  |  | $ 201,200 |  |  |  |  |  |  |  |  |
PFMI [Member] | Loss Income from Discontinued Operations, Net of Taxes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  |  |  |  | $ 150,000 |  |  |
PFMI [Member] |  |  |  |  |  |  |  |  |  |  |  |
Letter of Intent Receivable for Property Discontinued Operations |  | $ 450,000 |  | $ 450,000 |  |  |  |  |  |  |  |
Escrow Deposits Related to Property Sales |  | 20,000 |  |  |  |  |  |  |  |  |  |
Accrual for Environmental Loss Contingencies, Period Increase (Decrease) |  |  |  |  |  |  |  |  |  | (38,000) |  |
Escrow Deposit |  | $ 20,000 |  |  |  |  |  |  |  |  |  |
PFSG and PFM [Member] |  |  |  |  |  |  |  |  |  |  |  |
Payments for Environmental Liabilities |  |  |  |  |  |  |  |  |  | 78,000 |  |
SYA [Member] | Other Expense [Member] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  |  |  |  | (53,000) |
SYA [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses |  |  |  |  |  | $ 1,300,000 |  |  |  |  |  |
Disposal Group Capital Stock Sold Percentage |  |  |  |  |  | 100.00% |  |  |  |  |  |
Disposal Group Working Capital Adjustment |  |  |  |  |  | $ 60,000 |  |  |  |  | (42,000) |
Escrow Deposit |  |  |  |  |  | $ 50,000 |  |  |  |  |  | $ 50,000
Escrow Deposit Term |  |  |  |  |  | 1 year |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Other Expense |  |  |  |  |  | $ 96,000 |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  |  |  |  | (53,000) |
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation |  |  |  |  |  |  |  |  |  |  | 0 |
Not Held for Sale [Member] |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment |  |  |  |  |  |  |  | 10,000 |  | $ 10,000 |  |
Number of Previously Shut Down Locations |  |  |  |  |  |  |  |  |  | 2 |  |
Disposal Group, Including Discontinued Operation, Gain (Loss) on Insurance Settlement |  |  |  |  |  |  |  |  |  |  | 3,842,000 |
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment |  |  |  |  |  |  |  | 49,707,000 |  | $ 49,707,000 | 47,123,000 |
Number of Remediation Projects |  |  |  |  |  |  |  |  |  | 3 |  |
Accrual for Environmental Loss Contingencies |  |  |  |  |  |  |  | 900,000 |  | $ 900,000 | 1,016,000 |
Accrued Environmental Loss Contingencies, Current |  |  |  |  |  |  |  | $ 9,000 |  | 9,000 |  |
Accrual for Environmental Loss Contingencies, Period Increase (Decrease) |  |  |  |  |  |  |  |  |  | $ (116,000) |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  |  |  |  | (53,000) |
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation |  |  |  |  |  |  |  |  |  | $ 51,000 | $ (46,000) |

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- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. + 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 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of damages awarded to the plaintiff in the legal matter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
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