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Organization and Summary of Significant Accounting Policies (Details Textual) (USD $)
 1 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Organization and Summary of Significant Accounting Policies (Textual)        
Cash balances in banks   $ 7,835,791us-gaap_CashAndCashEquivalentsAtCarryingValue $ 1,114,873us-gaap_CashAndCashEquivalentsAtCarryingValue $ 1,445,728us-gaap_CashAndCashEquivalentsAtCarryingValue
Impairment loss   3,799,947us-gaap_AssetImpairmentCharges 2,573,256us-gaap_AssetImpairmentCharges  
Notes receivable   114,034us-gaap_NotesAndLoansReceivableNetCurrent 703,718us-gaap_NotesAndLoansReceivableNetCurrent  
Period for non-interest bearing amount   6 months    
Allowance for doubtful accounts, Write offs   27,000us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs 1,200,000us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs  
Allowance for doubtful accounts   1,321,328us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent 830,211us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent  
Inventory reserves   181,646us-gaap_InventoryValuationReserves 182,482us-gaap_InventoryValuationReserves  
Advances to suppliers   565,581us-gaap_Supplies 695,254us-gaap_Supplies  
Term of operating lease 8 years      
Rental income   605,214us-gaap_OperatingLeasesIncomeStatementLeaseRevenue    
Depreciation on equipment held for operating lease   503,675us-gaap_OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease     
Advances from customers   495,461us-gaap_CustomerAdvancesCurrent 1,455,740us-gaap_CustomerAdvancesCurrent  
Product warranty, period   1 year    
Revenue recognized on installation and warranty   130,565us-gaap_RecognitionOfDeferredRevenue 125,970us-gaap_RecognitionOfDeferredRevenue  
Shipping costs   1,372,724us-gaap_ShippingHandlingAndTransportationCosts 1,291,197us-gaap_ShippingHandlingAndTransportationCosts  
Employee benefit costs   245,267us-gaap_EmployeeBenefitsAndShareBasedCompensation 217,513us-gaap_EmployeeBenefitsAndShareBasedCompensation  
Advertising expense   24,175us-gaap_AdvertisingExpense 18,352us-gaap_AdvertisingExpense  
Research and development   116,061us-gaap_ResearchAndDevelopmentExpense 92,803us-gaap_ResearchAndDevelopmentExpense  
Cumulative translation adjustment and effect of exchange rate changes on cash   6,338us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents 30,034us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents  
Asset and liability translation rate (RMB to USD)   6.1385us-gaap_ForeignCurrencyExchangeRateTranslation1 6.1104us-gaap_ForeignCurrencyExchangeRateTranslation1  
Average translation rates (RMB to USD)   6.1432us-gaap_DerivativeForwardExchangeRate1 6.1905us-gaap_DerivativeForwardExchangeRate1  
Foreign currency translation description   Asset and liability accounts at December 31, 2014 and 2013 were translated at 6.1385 RMB to $1.00 and at 6.1104 RMB to $1.00, respectively.    
Average translation rates description   The average translation rates applied to the statements of income for the years ended December 31, 2014 and 2013 were 6.1432 RMB and 6.1905 RMB to $1.00, respectively.    
Increase in accounts receivables     354,000us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables 857,000us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables
China        
Organization and Summary of Significant Accounting Policies (Textual)        
Cash balances in banks   $ 7,792,993us-gaap_CashAndCashEquivalentsAtCarryingValue
/ cws_CashBalancesByGeographicAreaAxis
= country_CN		 $ 704,391us-gaap_CashAndCashEquivalentsAtCarryingValue
/ cws_CashBalancesByGeographicAreaAxis
= country_CN		  
Operating agreement [Member]        
Organization and Summary of Significant Accounting Policies (Textual)        
Term of agreement from October 12, 2007   20 years    
Option Agreement [Member]        
Organization and Summary of Significant Accounting Policies (Textual)        
Term of agreement from October 12, 2007   20 years    
Green Power Environment Technology (Shanghai) Co [Member]        
Organization and Summary of Significant Accounting Policies (Textual)        
Percentage of capital stock owned by Fulland   100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember