Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Current assets:    
Cash and cash equivalents $ 6,260 $ 16,815
Restricted cash 0 9,264
Marketable securities 17,807 0
Prepaid expenses and other current assets 5,385 1,602
Total current assets 29,452 27,681
Restricted cash, non-current 457 1,548
Deferred transaction costs 0 2,466
Other non-current assets 6,701 0
Property and equipment, net 1,799 1,696
Total assets 38,409 33,391
Current liabilities:    
Accounts payable 1,613 376
Accrued research and development 2,825 6,666
Accrued expenses 3,487 2,751
Due to Ikaria, Inc. 148 661
Total current liabilities 8,073 10,454
Total liabilities $ 8,073 $ 10,454
Commitments and contingencies
Stockholders' / members’ equity:    
Common stock, $0.01 par value per share; 125,000,000 shares authorized, 13,130,800 shares issued and outstanding at December 31, 2015 $ 131  
Preferred Stock, Value, Issued 0  
Additional paid-in capital 130,902  
Accumulated other comprehensive loss (19)  
Membership units, no par value per unit; 94,273,819 voting units authorized, 7,524,196 voting units issued and outstanding at December 31, 2014; 19,416,481 non-voting units authorized, 381,129 non-voting units issued and outstanding at December 31, 2014   $ 77,156
Accumulated deficit (100,678) (54,219)
Total stockholders' / members’ equity 30,336 22,937
Total liabilities and stockholders' / members' equity $ 38,409 $ 33,391