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Network
040 - Disclosure - Note 1 - Summary of Significant Accounting Policies - Rollforward for Allowance for Doubtful Accounts (Details)
(http://liqtech.com/20161231/role/statement-note-1-summary-of-significant-accounting-policies-rollforward-for-allowance-for-doubtful-accounts-details)
TableStatement [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001307579 (http://www.sec.gov/CIK)
Scenario [Axis]Scenario, Unspecified [Domain]
Statement [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Allowance for doubtful accounts at the beginning of the period
1,087,871  
1,654,290  
Bad debt expense
1,437,949  
80,729  
Amount of receivables written off
(252,792) 
(398,083) 
Effect of currency translation
(144,576) 
(249,065) 
Allowance for doubtful accounts at the end of the period
2,128,452  
 
1,087,871