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Secondary Market Mortgage Activities
12 Months Ended
Dec. 31, 2019
Mortgage Banking [Abstract]  
Secondary Market Mortgage Activities Secondary Market Mortgage Activities

The following summarizes secondary market mortgage activities for the years ended December 31, 2019, 2018, and 2017
 
2019
 
2018
 
2017
Loans originated for resale
$
43,458

 
$
22,990

 
$
25,231

Proceeds from sales of loans held for sale
43,198

 
23,311

 
24,285

Net gains on sales of loans held for sale
990

 
624

 
545

Loan servicing fees
634

 
600

 
563



Total loans serviced for others were $188,648 and $166,332 December 31, 2019 and 2018, respectively.

The following summarizes activity for capitalized mortgage servicing rights for the years ended December 31, 2019, 2018, and 2017
 
2019
 
2018
 
2017
Balance, beginning of year
$
1,495

 
$
1,387

 
$
1,391

Additions
292

 
315

 
198

Servicing rights acquired
0

 
0

 
0

Amortization
(214
)
 
(207
)
 
(202
)
Balance, end of year
$
1,573

 
$
1,495

 
$
1,387



The fair value of mortgage servicing rights is based on market prices for comparable mortgage servicing contracts, when available, or alternatively based on a valuation model that calculates the present value of estimated future net servicing income. The fair value of mortgage servicing rights was not materially different than amortized cost at December 31, 2019 and 2018, respectively. No valuation allowance was deemed necessary at December 31, 2019, 2018, and 2017. The fair value of interest rate lock commitments and forward commitments to sell loans was not material at December 31, 2019 or 2018.