Restricted Net Assets and Parent Company Condensed Financial Information (Details 3) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Condensed Balance Sheets
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	245,000,000us-gaap_CommonStockSharesAuthorized	245,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	10,673,292us-gaap_CommonStockSharesIssued	10,495,856us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	10,673,292us-gaap_CommonStockSharesOutstanding	10,495,856us-gaap_CommonStockSharesOutstanding
Parent Company [Member]
Condensed Balance Sheets
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued	10,673,292	10,495,856
Common stock, shares outstanding	10,673,292	10,495,856

Face amount or stated value per share of common stock.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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