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Business and summary of significant accounting policies (Concentrations of credit risk) (Details) (USD $)
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12 Months Ended | ||||||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2013
Accounts Receivable [Member]
Hotels [Member]
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Dec. 31, 2012
Accounts Receivable [Member]
Hotels [Member]
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Dec. 31, 2013
Accounts Receivable [Member]
Landlord at Midtown [Member]
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Dec. 31, 2012
Accounts Receivable [Member]
Landlord at Midtown [Member]
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| Concentration Risk [Line Items] | |||||||
| Concentration Risk, Percentage | 66.00% | 65.00% | 11.00% | 6.00% | |||
| Allowance for Doubtful Accounts Receivable, Current | $ 164,004 | $ 164,004 | |||||
| Cash, Uninsured Amount | $ 11,147,927 | $ 352,482 | |||||
| X | ||||||||||
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- Definition
A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation. No definition available.
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- Details
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- Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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