CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 44,989	$ 1,634
Refundable PDUFA fee		2,335
Prepaid expenses and other current assets	1,838	527
Total current assets	46,827	4,496
Property and equipment, net	468	514
Restricted cash	97	80
Total assets	47,392	5,090
Current liabilities:
Accounts payable	2,180	2,208
Accrued expenses	2,732	1,956
Current portion of deferred rent and lease note payable	45	59
Current portion of term loan payable	1,750	1,194
Convertible bridge notes with related parties		5,000
Total current liabilities	6,707	10,417
Lease incentive obligation	93	101
Term loan payable, long-term	6,146	6,813
Total liabilities	$ 12,946	$ 17,331
Commitments and Contingencies (see Note 8)
Shareholders' deficit:
Common stock, $0.001 par value; authorized shares - 72,000,000 at March 31, 2015 (unaudited) and December 31, 2014; issued and outstanding shares - 962,960 at March 31, 2015 (unaudited) and 1,006,219 at December 31, 2014	$ 1	$ 1
Additional paid-in capital	20,234	12,407
Accumulated deficit	(105,447)	(101,753)
Treasury stock	(3)	(3)
Total shareholders' deficit	(85,215)	(89,348)
Total liabilities, convertible redeemable preferred stock and shareholders' deficit	47,392	5,090
Series A convertible redeemable preferred stock
Convertible redeemable preferred stock
Convertible redeemable preferred stock	11,345	12,781
Series B convertible redeemable preferred stock
Convertible redeemable preferred stock
Convertible redeemable preferred stock	45,905	51,212
Series C convertible redeemable preferred stock
Convertible redeemable preferred stock
Convertible redeemable preferred stock	12,000	$ 13,114
Series D convertible redeemable preferred stock
Convertible redeemable preferred stock
Convertible redeemable preferred stock	$ 50,411

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).