Guarantees (Tables)

12 Months Ended

Dec. 31, 2017

Guarantees [Abstract]

Schedule of Guarantor Obligations

The following table presents the notional amount and fair value of Arrow's off-balance sheet commitments to extend credit and commitments under standby letters of credit as of December 31, 2017 and 2016:

Balance at December 31,	2017		2016
Notional Amount:
Commitments to Extend Credit	$	315,256	$	296,442
Standby Letters of Credit	3,526		3,445
Fair Value:
Commitments to Extend Credit	$	—	$	—
Standby Letters of Credit	23		30