XML 45 R34.htm IDEA: XBRL DOCUMENT
v3.20.2

Deposits (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2020
Deposits. |
Schedule of components of deposits |
|  | September 30, |  | December 31,
(dollars in thousands) |  | 2020 |  | 2019
Noninterest-bearing |  | $ | 693,450 |  | $ | 577,704
Interest-bearing |  |  |  |  |  |
Interest-bearing demand |  |  | 590,366 |  |  | 458,689
Savings accounts |  |  | 78,659 |  |  | 55,777
Money market savings |  |  | 892,473 |  |  | 683,064
Time deposits |  |  | 207,422 |  |  | 196,082
Total interest-bearing |  |  | 1,768,920 |  |  | 1,393,612
Total deposits |  | $ | 2,462,370 |  | $ | 1,971,316

X
- Definition Tabular disclosure of components of deposits. + References No definition available. + Details
Name: | alrs_ScheduleOfComponentsOfDepositsTableTextBlock
Namespace Prefix: | alrs_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DepositsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration