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Stockholders' Equity (Details) (USD $)
12 Months Ended 0 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Jun. 02, 2014
Jul. 18, 2013
Jul. 10, 2013
May 12, 2014
Jul. 29, 2013
Dec. 31, 2010
Stockholders' Equity (Textual)                
Stock-based compensation $ 375,989us-gaap_ShareBasedCompensation $ 423,112us-gaap_ShareBasedCompensation            
Sale of common stock 1,623,691us-gaap_StockIssuedDuringPeriodValueIssuedForCash 2,388,589us-gaap_StockIssuedDuringPeriodValueIssuedForCash            
Common stock, shares issued 3,859,986us-gaap_CommonStockSharesIssued 3,503,502us-gaap_CommonStockSharesIssued            
Chief executive officer's wife [Member]                
Stockholders' Equity (Textual)                
Common stock sold for cash, Shares     290,984us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_TitleOfIndividualAxis
= cws_ChiefExecutiveOfficerAndHisWifeMember
         
Common stock sold for cash, Value     1,623,691us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_TitleOfIndividualAxis
= cws_ChiefExecutiveOfficerAndHisWifeMember
         
Investor [Member]                
Stockholders' Equity (Textual)                
Sale of common stock, Shares       428,398us-gaap_StockIssuedDuringPeriodSharesIssuedForCash
/ us-gaap_TitleOfIndividualAxis
= us-gaap_InvestorMember
150,518us-gaap_StockIssuedDuringPeriodSharesIssuedForCash
/ us-gaap_TitleOfIndividualAxis
= us-gaap_InvestorMember
     
Common stock purchase price       $ 4.50us-gaap_SaleOfStockPricePerShare
/ us-gaap_TitleOfIndividualAxis
= us-gaap_InvestorMember
$ 4.70us-gaap_SaleOfStockPricePerShare
/ us-gaap_TitleOfIndividualAxis
= us-gaap_InvestorMember
     
Sale of common stock       1,768,000us-gaap_StockIssuedDuringPeriodValueIssuedForCash
/ us-gaap_TitleOfIndividualAxis
= us-gaap_InvestorMember
620,000us-gaap_StockIssuedDuringPeriodValueIssuedForCash
/ us-gaap_TitleOfIndividualAxis
= us-gaap_InvestorMember
     
Payment related to stock issuance costs       154,745us-gaap_PaymentsOfStockIssuanceCosts
/ us-gaap_TitleOfIndividualAxis
= us-gaap_InvestorMember
84,892us-gaap_PaymentsOfStockIssuanceCosts
/ us-gaap_TitleOfIndividualAxis
= us-gaap_InvestorMember
     
Percentage of fee payment       10.00%cws_PercentageOfFeeRelatedToStockIssue
/ us-gaap_TitleOfIndividualAxis
= us-gaap_InvestorMember
10.00%cws_PercentageOfFeeRelatedToStockIssue
/ us-gaap_TitleOfIndividualAxis
= us-gaap_InvestorMember
     
2010 long-term incentive plan [Member]                
Stockholders' Equity (Textual)                
Common stock issued for services           65,500us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
30,000us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
 
Stock-based compensation 362,215us-gaap_ShareBasedCompensation
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
157,200us-gaap_ShareBasedCompensation
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
           
Common stock, shares issued 243,491us-gaap_CommonStockSharesIssued
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
             
Common stock issued for future service   $ 0cws_CommonStockIssuedForPriorAndFutureService
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
           
Common stock shares against long term incentive plan               200,000cws_CommonStockSharesAgainstLongTermIncentivePlan
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
2010 long-term incentive plan [Member] | Chief Executive Officer [Member]                
Stockholders' Equity (Textual)                
Common stock issued for services           20,000us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
   
2010 long-term incentive plan [Member] | Chief Financial Officer [Member]                
Stockholders' Equity (Textual)                
Common stock issued for services           15,000us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefFinancialOfficerMember
8,000us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefFinancialOfficerMember
 
2010 long-term incentive plan [Member] | Director [Member]                
Stockholders' Equity (Textual)                
Common stock issued for services           3,500us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_DirectorMember
   
2010 long-term incentive plan [Member] | Chief executive officer's wife [Member]                
Stockholders' Equity (Textual)                
Common stock issued for services             8,000us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= cws_ChiefExecutiveOfficerAndHisWifeMember
 
2010 long-term incentive plan [Member] | Other Employees [Member]                
Stockholders' Equity (Textual)                
Common stock issued for services             14,000us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= cws_LongTermIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= cws_OtherEmployeesAndConsultantsMember