Amount of operating expense attributable to disposal group, including, but not limited to, discontinued operation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721673-107760

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- Definition

Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The cash inflow from the sale of formerly productive land held for sale, anything permanently fixed to it, including buildings, structures on it, and so forth.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585

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Discontinued Operations (Details Textual) - USD ($)	1 Months Ended		12 Months Ended
Discontinued Operations (Details Textual) - USD ($)	Jan. 31, 2014	Jan. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Ironwood Michigan [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Sale of Property Held-for-sale	$ 5,000,000
Disposal Group, Including Discontinued Operation, Revenue			$ 42,600	$ 1,281,000
Disposal Group, Including Discontinued Operation, Operating Expense			$ 28,000	990,000
Ypsilanti Michigan [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Sale of Property Held-for-sale		$ 5,600,000
Disposal Group, Including Discontinued Operation, Revenue				9,300
Disposal Group, Including Discontinued Operation, Operating Expense				$ 2,300