Summary Of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2014

Accounting Policies [Abstract]

Net revenue by major customer

Net revenue by major customer is as follows (as a percentage of total net revenue):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2013		2014		2013		2014
HP	52	%	50	%	57	%	50	%
Tektronix	21	%	4	%	16	%	10	%
Other customers less than 10%	27	%	46	%	27	%	40	%
Total	100	%	100	%	100	%	100	%

Allowance for doubtful accounts

Balance sheet details are as follows, (in thousands):

	June 30, 2013			June 30, 2014
Balance, beginning of the year	$	240		$	23
Additions to allowance	3			2
Write-offs	(213		)	—
Recoveries	(8		)	—
Balance, quarter ended	$	22		$	25