CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016
OPERATING ACTIVITIES
Net income	$ 2,737	$ 95
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Provision for loan losses	550	3,350
Depreciation expense	862	892
Net amortization of investment securities	238	203
Net realized gains on investment securities available for sale	(59)	(117)
Net gains on loans held for sale	(300)	(292)
Amortization of deferred loan fees	(85)	(130)
Origination of mortgage loans held for sale	(22,687)	(20,215)
Sales of mortgage loans held for sale	21,451	20,370
Increase in accrued interest income receivable	(215)	(229)
Decrease in accrued interest payable	(148)	(180)
Earnings on bank owned life insurance	(284)	(336)
Deferred income taxes	613	(420)
Amortization of deferred issuance costs	20	20
Stock based compensation expense	64	65
Other, net	235	1,326
Net cash provided by operating activities	2,992	4,402
INVESTING ACTIVITIES
Purchases of investment securities - available for sale	(22,816)	(18,894)
Purchases of investment securities - held to maturity	(7,790)	(4,708)
Proceeds from sales of investment securities - available for sale	7,206	7,422
Proceeds from maturities of investment securities - available for sale	12,165	12,057
Proceeds from maturities of investment securities - held to maturity	736	661
Purchases of regulatory stock	(8,581)	(7,608)
Proceeds from redemption of regulatory stock	7,638	8,499
Long-term loans originated	(81,477)	(108,221)
Principal collected on long-term loans	76,107	79,447
Loans purchased or participated	(4,138)	(4,948)
Loans sold or participated	0	18,900
Proceeds from sale of other real estate owned	60	47
Proceeds from life insurance policies	614	0
Purchases of premises and equipment	(1,327)	(663)
Net cash used in investing activities	(21,603)	(18,009)
FINANCING ACTIVITIES
Net (decrease) increase in deposit balances	(11,411)	37,637
Net increase (decrease) in other short-term borrowings	29,347	(26,173)
Principal borrowings on advances from Federal Home Loan Bank	4,500	3,042
Principal repayments on advances from Federal Home Loan Bank	(5,000)	(1,000)
Preferred stock redemption	0	(21,000)
Purchase of treasury stock	(1,869)	0
Common stock dividends	(563)	(376)
Preferred stock dividends	0	(15)
Net cash provided by (used in) financing activities	15,004	(7,885)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(3,607)	(21,492)
CASH AND CASH EQUIVALENTS AT JANUARY 1	34,073	48,510
CASH AND CASH EQUIVALENTS AT JUNE 30	$ 30,466	$ 27,018

Life insurance income not elsewhere specified in the taxonomy earned during the period.

No definition available.

Name:	asrv_OtherBankOwnedLifeInsuranceIncome
Namespace Prefix:	asrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.