Rendering

Component: (Network and Table)
Network
2411405 - Disclosure - Commitments and Contingencies - Warranty Liability (Detail)
(http://www.ftek.com/role/CommitmentsAndContingenciesWarrantyLiabilityDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000846913 (http://www.sec.gov/CIK)
Commitments and Contingencies Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Commitments and Contingencies Disclosure [Abstract]
 
 
 
Movement in Standard Product Warranty Accrual [Roll Forward]
 
 
 
Aggregate product warranty liability at beginning of year
268,000  
268,000  
596,000  
Net aggregate expense (income) related to product warranties
(109,000) 
8,000  
(311,000) 
Aggregate reductions for payments
0  
(8,000) 
(17,000) 
Aggregate product warranty liability at end of year
159,000  
 
268,000  
 
268,000