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Commitments and Contingencies (Tables)
12 Months Ended
Sep. 30, 2017
Commitments and Contingencies Disclosure [Abstract]  
Supply Commitment
A summary of the Company’s commitments at September 30, 2017 and 2016 is as follows (dollars in thousands):
 
2017

 
2016

Undisbursed portion of construction loans in process (see Note 4)
$
82,411

 
$
48,627

Undisbursed lines of credit
51,420

 
47,949

Commitments to extend credit
19,673

 
20,681