XML 24 R10.htm IDEA: XBRL DOCUMENT v3.10.0.1
RESTRICTIONS ON CASH AND DUE FROM BANKS:
12 Months Ended
Dec. 31, 2018
Restrictions On Cash and Due From Banks Disclosure [Abstract]  
RESTRICTIONS ON CASH AND DUE FROM BANKS
RESTRICTIONS ON CASH AND DUE FROM BANKS:
 
Certain affiliate banks are required to maintain average reserve balances with the Federal Reserve Bank. The amount of those reserve balances was approximately $12.8 million and $12.5 million at December 31, 2018 and 2017, respectively.