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Accounts receivable, trade (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Accounts receivable, trade [Abstract] | |||
| Accounts receivable | $ 910us-gaap_AccountsReceivableGrossCurrent | $ 48,161us-gaap_AccountsReceivableGrossCurrent | |
| Allowance for doubtful accounts | (98)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent | ||
| Accounts receivable, net | 910us-gaap_AccountsReceivableNetCurrent | 48,063us-gaap_AccountsReceivableNetCurrent | |
| Balance at the beginning of the year | 98us-gaap_AllowanceForDoubtfulAccountsReceivable | ||
| Addition | 98us-gaap_ProvisionForDoubtfulAccounts | ||
| Disposal of a subsidiary | (98)us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs | ||
| Balance at the end of the year | $ 98us-gaap_AllowanceForDoubtfulAccountsReceivable | ||
| X | ||||||||||
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- Definition
Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| 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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| X | ||||||||||
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- Definition
Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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