Cash, Cash Equivalents and Investments (Tables)

9 Months Ended

Sep. 30, 2017

Cash And Cash Equivalents [Abstract]

Cash and Cash Equivalents and Investments

The Company’s cash and investments consisted of the following:

	September 30,		December 31,
	2017		2016
Cash	$	4,822	$	7,507
Cash equivalents		1,705		7,348
Short-term investments		29,979		18,456
	$	36,506	$	33,311

Cash Equivalents and Investments Measured at Fair Value

Cash equivalents and investments measured at fair value were as follows at September 30, 2017 and December 31, 2016:

	September 30, 2017								December 31, 2016
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash equivalents:
Corporate bonds	$	0	$	499	$	0	$	499	$	0	$	3,608	$	0	$	3,608
US government agency bonds		0		752		0		752		0		2,846		0		2,846
Certificates of deposit		0		0		0		0		750		0		0		750
Money market funds		454		0		0		454		145		0		0		145
Investments:
Corporate bonds		0		14,958		0		14,958		0		5,569		0		5,569
Pre-refunded municipal bonds		0		4,437		0		4,437		0		7,776		0		7,776
US government agency bonds		0		4,407		0		4,407		0		2,571		0		2,571
Certificates of deposit		6,162		0		0		6,162		2,530		0		0		2,530
Total	$	6,616	$	25,053	$	0	$	31,669	$	3,425	$	22,370	$	0	$	25,795