Cash, Cash Equivalents and Investments (Tables)

3 Months Ended

Mar. 31, 2017

Cash And Cash Equivalents [Abstract]

Cash and Cash Equivalents and Investments

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

	March 31,		December 31,
	2017		2016
Cash	$	6,116	$	7,507
Cash equivalents		8,844		7,348
Short-term investments		18,002		18,456
	$	32,962	$	33,311

Cash Equivalents and Investments Measured at Fair Value

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

	March 31, 2017								December 31, 2016
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash equivalents:
Corporate bonds	$	0	$	5,783	$	0	$	5,783	$	0	$	3,608	$	0	$	3,608
Pre-refunded municipal bonds		0		303		0		303		0		0		0		0
US government agency bonds		0		2,150		0		2,150		0		2,846		0		2,846
Certificates of deposit		351		0		0		351		750		0		0		750
Money market funds		257		0		0		257		145		0		0		145
Investments:
Corporate bonds		0		4,377		0		4,377		0		5,569		0		5,569
Pre-refunded municipal bonds		0		8,808		0		8,808		0		7,776		0		7,776
US government agency bonds		0		2,781		0		2,781		0		2,571		0		2,571
Certificates of deposit		2,026		0		0		2,026		2,530		0		0		2,530
Total	$	2,634	$	24,202	$	0	$	26,836	$	3,425	$	22,370	$	0	$	25,795