6.	Restricted Cash

The Company is required to maintain a stand-by letter of credit as a security deposit under its lease for its office space in Stamford, Connecticut (refer to Note 15, Commitments and Contingencies). The fair value of the letter of credit approximates its contract value. The Company’s bank requires the Company to maintain a restricted cash balance to serve as collateral for the letter of credit issued to the landlord by the bank. As of March 31, 2018, the restricted cash balance for the Stamford lease was invested in a commercial money market account. This balance is required to remain at $769 through May 2019 and may, upon request from the Company, thereafter be reduced to $408 through the end of the lease term in 2023. The reduction in the balance of the letter of credit for the Stamford lease is contingent upon the Company not being in default of any provisions of that lease prior to the request for the reduction. As of March 31, 2018 and December 31, 2017, the Company had $769 of restricted cash related to the Stamford lease in long-term assets.

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Condensed Balance Sheets that sum to the total of the same such amounts shown in the Condensed Statements of Cash Flows.

	March 31, 2018		December 31, 2017
Cash and cash equivalents	$	11,877	$	9,388
Restricted cash, long-term assets		769		769
Total cash, cash equivalents, and restricted cash shown in the Condensed Statements of Cash Flows	$	12,646	$	10,157