Investments

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Investments

4. Investments

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								71
Total investments							$	71

At December 31, 2017 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	$	101	$	—	$	—	$	101
Total investments	$	101	$	—	$	—	$	101
Reported as:
Cash and cash equivalents							$	-
Restricted cash, long-term								101
Total investments							$	101