Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 14,155,809	$ 24,196,691
Prepaid expenses	931,461us-gaap_PrepaidExpenseCurrent	234,262us-gaap_PrepaidExpenseCurrent
Other current assets	161,436us-gaap_OtherAssetsCurrent
Total current assets	15,248,706us-gaap_AssetsCurrent	24,430,953us-gaap_AssetsCurrent
Other assets	53,023us-gaap_OtherAssetsNoncurrent	555,505us-gaap_OtherAssetsNoncurrent
Total assets	15,301,729us-gaap_Assets	24,986,458us-gaap_Assets
Current Liabilities:
Accounts payable and accrued expenses	1,011,629	284,915
Accrued compensation	697,245	557,399
Other current liabilities	12,313us-gaap_OtherLiabilitiesCurrent
Current portion of long-term debt	150,430us-gaap_LongTermDebtCurrent	1,442,592us-gaap_LongTermDebtCurrent
Total current liabilities	1,871,617us-gaap_LiabilitiesCurrent	2,284,906us-gaap_LiabilitiesCurrent
Other long-term liabilities		6,830us-gaap_OtherLiabilitiesNoncurrent
Long-term debt, net of current portion	4,241,448us-gaap_LongTermDebtNoncurrent	1,511,461us-gaap_LongTermDebtNoncurrent
Total liabilities	6,113,065us-gaap_Liabilities	3,803,197us-gaap_Liabilities
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.0001 par value; authorized shares — 5,000,000 at December 31, 2014 and 2013; issued and outstanding shares — 0 at December 31, 2014 and 2013
Common stock, $0.0001 par value; authorized shares — 50,000,000 at December 31, 2014 and 2013; issued and outstanding shares — 6,112,091 and 6,096,752 at December 31, 2014 and 2013, respectively	611us-gaap_CommonStockValue	610us-gaap_CommonStockValue
Additional paid-in capital	45,127,202	43,874,119
Accumulated deficit	(35,939,149)	(22,691,468)
Total stockholders' equity	9,188,664us-gaap_StockholdersEquity	21,183,261us-gaap_StockholdersEquity
Total liabilities and stockholders' equity	$ 15,301,729	$ 24,986,458

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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