RECEIVABLES

The following table provides a reconciliation of the activity related to the Company's allowance for doubtful accounts receivable, for the years ended December 31:



(In thousands)	2014			2013			2012
Balance at beginning of period	$	705		$	677		$	858
Provision for doubtful accounts	178			194			304
Additions related to acquired businesses	58			5			—
Recoveries	4			1			8
Accounts written off	(28		)	(172		)	(493		)
Balance at end of period	$	917		$	705		$	677

In addition to the allowance for doubtful accounts receivable, the Company had an allowance for prompt payment discounts in the amount of $0.4 million and $0.3 million at December 31, 2014 and 2013, respectively.