Accounts Receivable

12 Months Ended

Dec. 31, 2013

Receivables [Abstract]

Accounts Receivable

5. ACCOUNTS RECEIVABLE:

Included in accounts receivable are unbilled amounts totaling approximately $2.7 million and $1.8 million at December 31, 2013 and 2012, respectively, which relate to services performed during the year and billed in the subsequent year. The Company maintains allowances for potential losses which management believes are adequate to absorb any probable losses to be incurred in realizing the accounts receivable amounts recorded in the accompanying consolidated financial statements.

The following are the changes in the allowance for doubtful accounts:

	Year Ended December 31,
	2013			2012			2011
	(In Thousands)
Balance at beginning of year	$	250		$	300		$	595
Provisions for doubtful accounts		39			21			—
Charge-offs, net of recoveries		(139	)		(71	)		(295	)
Balance at end of year	$	150		$	250		$	300