Cash and Investments (Tables)

12 Months Ended

Dec. 31, 2019

Cash And Cash Equivalents [Abstract]

Cash, Cash Equivalents, Restricted Cash, and Short-Term Investments

Cash, cash equivalents, restricted cash, and short-term investments consisted of the following (in thousands):

	December 31,
	2019		2018
Cash	$	4,092	$	6,780
Cash equivalents (see detail in Note 4)		3,620		3,225
Restricted cash		600		263
Restricted cash, long-term (see detail in Note 4)		-		263
Total cash, cash equivalents and restricted cash as presented in the statement of cash flows		8,312		10,531
Short-term investments (see detail in Note 4)		2,249		6,409
Total cash, cash equivalents, restricted cash and short-term investments	$	10,561	$	16,940