Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 25,810	$ 36,396
Marketable securities	39,026us-gaap_MarketableSecuritiesCurrent	37,940us-gaap_MarketableSecuritiesCurrent
Accounts receivable, net	19,271us-gaap_AccountsReceivableNetCurrent	17,270us-gaap_AccountsReceivableNetCurrent
Inventories, net	13,702us-gaap_InventoryNet	13,441us-gaap_InventoryNet
Prepaid expenses and other current assets	3,696	3,845
Total current assets	101,505us-gaap_AssetsCurrent	108,892us-gaap_AssetsCurrent
Long term marketable securities	27,315us-gaap_MarketableSecuritiesNoncurrent	19,816us-gaap_MarketableSecuritiesNoncurrent
Property and equipment, net	2,481us-gaap_PropertyPlantAndEquipmentNet	2,448us-gaap_PropertyPlantAndEquipmentNet
Intangible assets, net	7,839	5,434
Other non-current assets	497us-gaap_OtherAssetsNoncurrent	918us-gaap_OtherAssetsNoncurrent
Total assets	139,637us-gaap_Assets	137,508us-gaap_Assets
Current liabilities:
Accounts payable	859us-gaap_AccountsPayableCurrent	1,863us-gaap_AccountsPayableCurrent
Accrued expenses	25,853us-gaap_AccruedLiabilitiesCurrent	25,487us-gaap_AccruedLiabilitiesCurrent
Deferred licensing revenue	143supn_DeferredRevenueLicensingCurrent	143supn_DeferredRevenueLicensingCurrent
Total current liabilities	26,855us-gaap_LiabilitiesCurrent	27,493us-gaap_LiabilitiesCurrent
Deferred licensing revenue, net of current portion	1,238supn_DeferredRevenueLicensingNoncurrent	1,274supn_DeferredRevenueLicensingNoncurrent
Convertible notes, net of discount	11,708us-gaap_ConvertibleLongTermNotesPayable	26,947us-gaap_ConvertibleLongTermNotesPayable
Other non-current liabilities	2,561us-gaap_OtherLiabilitiesNoncurrent	3,876us-gaap_OtherLiabilitiesNoncurrent
Derivative liabilities	2,691us-gaap_DerivativeLiabilitiesNoncurrent	6,564us-gaap_DerivativeLiabilitiesNoncurrent
Total liabilities	45,053us-gaap_Liabilities	66,154us-gaap_Liabilities
Stockholders' equity:
Common stock, $0.001 par value, 130,000,000 shares authorized at March 31, 2015 and December 31, 2014; 47,513,429 and 42,974,463 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively	48us-gaap_CommonStockValue	43us-gaap_CommonStockValue
Additional paid-in capital	252,341us-gaap_AdditionalPaidInCapital	230,122us-gaap_AdditionalPaidInCapital
Accumulated other comprehensive loss	(65)	(154)
Accumulated deficit	(157,740)	(158,657)
Total stockholders' equity	94,584us-gaap_StockholdersEquity	71,354us-gaap_StockholdersEquity
Total liabilities and stockholders' equity	$ 139,637	$ 137,508

Represents the carrying amount of licensing consideration received or receivable, as of the balance sheet date, on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer.

No definition available.