Annual report pursuant to Section 13 and 15(d)

Accounts Receivable (Details Narrative)

v2.4.1.9
Accounts Receivable (Details Narrative) (Revolving Line Of Credit Agreement [Member], Export Import Bank [Member])
12 Months Ended
Dec. 31, 2014
Revolving Line Of Credit Agreement [Member] | Export Import Bank [Member]
 
Percentage of customer's outstanding balance 95.00%WSTI_PercentageOfCustomersOutstandingBalance
/ us-gaap_CreditFacilityAxis
= WSTI_RevolvingLineOfCreditAgreementMember
/ us-gaap_LineOfCreditFacilityAxis
= WSTI_ExportImportBankMember