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Debt Securities Held to Maturity (Tables)
9 Months Ended
Sep. 30, 2020
Investments, Debt and Equity Securities [Abstract]  
Schedule of amortized cost, gross unrealized gains, gross unrealized losses and the fair value of securities held-to-maturity Debt securities held to maturity at September 30, 2020 and December 31, 2019 are summarized as follows:
September 30, 2020
Amortized CostGross Unrealized GainsGross Unrealized (Losses)Fair Value
(In thousands)
U.S. government and agency obligations$5,000 $$— $5,004 
Mortgage-backed securities and collateralized mortgage obligations$267,712 $15,754 $(31)$283,435 
$272,712 $15,758 $(31)$288,439 

December 31, 2019
Amortized CostGross Unrealized GainsGross Unrealized (Losses)Fair Value
(In thousands)
U.S. government and agency obligations$20,000 $26 $(66)$19,960 
Mortgage-backed securities and collateralized mortgage obligations265,756 4,048 (259)269,545 
$285,756 $4,074 $(325)$289,505 
Schedule of held-to-maturity securities reported in a continuous unrealized loss position
The following tables summarize the fair value and gross unrealized losses of those securities that reported an unrealized loss at September 30, 2020 and December 31, 2019 and if the unrealized loss position was continuous for the twelve months prior to those respective dates:
September 30, 2020
Less Than 12 Months12 Months or LongerTotal
Fair ValueGross Unrealized (Losses)Fair ValueGross Unrealized (Losses)Fair ValueGross Unrealized (Losses)
(In thousands)
Mortgage-backed securities and collateralized mortgage obligations$2,695 $(6)$1,883 $(25)$4,578 $(31)

December 31, 2019
Less Than 12 Months12 Months or LongerTotal
Fair ValueGross Unrealized (Losses)Fair ValueGross Unrealized (Losses)Fair ValueGross Unrealized (Losses)
(In thousands)
U.S. government and agency obligations$9,934 $(66)$— $— $9,934 $(66)
Mortgage-backed securities and collateralized mortgage obligations27,911 (251)772 (8)28,683 (259)
$37,845 $(317)$772 $(8)$38,617 $(325)