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Component: (Network and Table)
Network
117 - Disclosure - Note 13 - Stockholders' Equity - Components of Accumulated Other Comprehensive Loss and Changes During the Year (Details)
(http://flushingbank.com/20161231/role/statement-note-13-stockholders-equity-components-of-accumulated-other-comprehensive-loss-and-changes-during-the-year-details)
TableStatement [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000923139 (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
2014-01-01 - 2014-12-31
Equity Components [Axis]Equity Components [Axis]Equity Components [Axis]
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]Equity Component [Domain]Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]Equity Component [Domain]Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]Equity Component [Domain]
Beginning balance, net of tax
(521,000) 
(5,041,000) 
(5,562,000) 
3,392,000  
(6,299,000) 
(2,907,000) 
(8,522,000) 
(2,853,000) 
(11,375,000) 
Other comprehensive income (loss) before reclassifications, net of tax
(2,452,000) 
235,000  
(2,217,000) 
(3,818,000) 
615,000  
(3,203,000) 
13,548,000  
(3,790,000) 
9,758,000  
Amounts reclassified from accumulated other comprehensive income (loss), net of tax
(886,000) 
303,000  
(583,000) 
(95,000) 
643,000  
548,000  
(1,634,000) 
344,000  
(1,290,000) 
Total other comprehensive income (loss), net of tax
(3,338,000) 
 
538,000  
 
(2,800,000) 
 
(3,913,000) 
 
1,258,000  
 
(2,655,000) 
 
11,914,000  
 
(3,446,000) 
 
8,468,000  
 
Ending balance, net of tax
(3,859,000) 
 
(4,503,000) 
 
(8,362,000) 
 
(521,000) 
 
(5,041,000) 
 
(5,562,000) 
 
3,392,000  
 
(6,299,000) 
 
(2,907,000)