Investments (Tables)

12 Months Ended

Dec. 31, 2019

Investments, Debt and Equity Securities [Abstract]

Schedule of amortized cost and fair value of investments, with gross unrealized gains and losses

At December 31, 2019, the amortized cost and fair value of investments, with gross unrealized gains and losses, were as follows:

			Gross		Gross
	Amortized		Unrealized		Unrealized
	Cost		Gains		Losses		Fair Value
Money market funds	$	71	$	—	$	—	$	71
Total investments	$	71	$	—	$	—	$	71
Reported as:
Cash and cash equivalents							$	—
Restricted cash								71
Total investments							$	71

At December 31, 2018 the amortized cost and fair value of investments, with gross unrealized gains and losses, were as follows:

			Gross		Gross
	Amortized		Unrealized		Unrealized
	Cost		Gains		Losses		Fair Value
Money market funds	$	71	$	—	$	—	$	71
Total investments	$	71	$	—	$	—	$	71
Reported as:
Cash and cash equivalents							$	-
Restricted cash, long-term								71
Total investments							$	71