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Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2018

Summary of Significant Accounting Policies [Abstract]

Cash, Cash Equivalents and Restricted Cash

Cash, cash equivalents and restricted cash consist of the following:

	March 31, 2018		December 31, 2017

Cash and cash equivalents	$	171,136	$	18,142
Restricted cash		208		207
	$	171,344	$	18,349

Short-term Investment

Short term investments at March 31, 2018 consist of the following:

	Cost Basis		Unrealized Gains		Fair Value
Current:
Certificates of deposit	$	1,546	$	-	$	1,546
United States Treasury securities		10,005		10		10,015
	$	11,551	$	10	$	11,561

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References + Details