Deposits (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Banking and Thrift [Abstract]
Time deposits less than $250,000	$ 167,000	$ 96,000
Brokered deposit	120,621	132,604
Reciprocal CDARS deposits	$ 69,593	$ 75,215

The aggregate amount of domestic or foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) that total to less than $250,000.

No definition available.

Name:	ancx_TimeDepositsLessThan250000
Namespace Prefix:	ancx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant