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Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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|---|---|---|
| Current Assets: | ||
| Cash and cash equivalents | $ 49,759us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 99,521us-gaap_CashAndCashEquivalentsAtCarryingValue |
| Marketable securities (Note 3) | 20,002us-gaap_MarketableSecuritiesCurrent | 0us-gaap_MarketableSecuritiesCurrent |
| Prepaid expenses and other current assets | 702us-gaap_PrepaidExpenseAndOtherAssetsCurrent | 510us-gaap_PrepaidExpenseAndOtherAssetsCurrent |
| Total current assets | 70,463us-gaap_AssetsCurrent | 100,031us-gaap_AssetsCurrent |
| Property & equipment, net | 52us-gaap_PropertyPlantAndEquipmentNet | 447us-gaap_PropertyPlantAndEquipmentNet |
| Restricted cash | 14,586us-gaap_RestrictedCashAndCashEquivalentsNoncurrent | 0us-gaap_RestrictedCashAndCashEquivalentsNoncurrent |
| Long-term investments, at fair value (Note 9) | 4,160us-gaap_LongTermInvestments | 0us-gaap_LongTermInvestments |
| Other assets | 70us-gaap_OtherAssetsNoncurrent | 104us-gaap_OtherAssetsNoncurrent |
| Total Assets | 89,331us-gaap_Assets | 100,582us-gaap_Assets |
| Current Liabilities: | ||
| Accounts payable | 366us-gaap_AccountsPayableCurrent | 468us-gaap_AccountsPayableCurrent |
| Interest payable | 28us-gaap_InterestPayableCurrent | 109us-gaap_InterestPayableCurrent |
| Accrued expenses | 3,683us-gaap_AccruedLiabilitiesCurrent | 4,430us-gaap_AccruedLiabilitiesCurrent |
| Current portion of note payable | 0us-gaap_NotesPayableCurrent | 6,203us-gaap_NotesPayableCurrent |
| Total current liabilities | 4,077us-gaap_LiabilitiesCurrent | 11,210us-gaap_LiabilitiesCurrent |
| Note payable | 14,009us-gaap_LongTermNotesPayable | 7,017us-gaap_LongTermNotesPayable |
| Other long-term liabilities | 722us-gaap_OtherLiabilitiesNoncurrent | 1,077us-gaap_OtherLiabilitiesNoncurrent |
| Total Liabilities | 18,808us-gaap_Liabilities | 19,304us-gaap_Liabilities |
| Commitments and Contingencies (Note 7) | ||
| Stockholders' Equity: | ||
| Common Stock, $.001 par value, 100,000,000 shares authorized, 46,494,034 and 39,652,950 shares issued and outstanding as of December 31, 2014 and 2013, respectively | 46us-gaap_CommonStockValue | 40us-gaap_CommonStockValue |
| Additional paid-in capital | 212,205us-gaap_AdditionalPaidInCapital | 202,580us-gaap_AdditionalPaidInCapital |
| Accumulated deficit | (141,728)us-gaap_RetainedEarningsAccumulatedDeficit | (121,342)us-gaap_RetainedEarningsAccumulatedDeficit |
| Total Stockholders' Equity | 70,523us-gaap_StockholdersEquity | 81,278us-gaap_StockholdersEquity |
| Total Liabilities and Stockholders' Equity | 89,331us-gaap_LiabilitiesAndStockholdersEquity | 100,582us-gaap_LiabilitiesAndStockholdersEquity |
| Series C Convertible Preferred Stock [Member] | ||
| Stockholders' Equity: | ||
| Convertible Preferred stock, $.001 par value, 129,767 Series C shares authorized, 0 shares issued and outstanding as of December 31, 2014 and 2013, respectively |
$ 0us-gaap_PreferredStockValue / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember |
$ 0us-gaap_PreferredStockValue / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember |
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- Definition
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). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Cash and equivalents whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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