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Consolidated Statements of Cash Flows (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Cash flows from operating activities:    
Net loss $ (19,231,488)us-gaap_ProfitLoss $ (13,830,084)us-gaap_ProfitLoss
Adjustments to reconcile net loss to net cash used in operating activities:    
Equity-based compensation expense 3,715,759us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims 3,893,616us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims
Depreciation and amortization 604,440us-gaap_DepreciationAndAmortization 444,452us-gaap_DepreciationAndAmortization
Change in acquisition-related contingent consideration 550,000us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1 190,000us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
Bad debt recovery (1,873)nbs_ProvisionForReductionOfDoubtfulAccounts (1,711)nbs_ProvisionForReductionOfDoubtfulAccounts
Deferred income taxes 46,633us-gaap_IncreaseDecreaseInDeferredIncomeTaxes 47,409us-gaap_IncreaseDecreaseInDeferredIncomeTaxes
Accretion Expense 29,724us-gaap_AccretionExpense 0us-gaap_AccretionExpense
Changes in operating assets and liabilities:    
Prepaid expenses and other current assets 52,331us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets (271,149)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Accounts receivable 1,144,356us-gaap_IncreaseDecreaseInAccountsReceivable (25,012)us-gaap_IncreaseDecreaseInAccountsReceivable
Deferred costs (1,054,362)us-gaap_IncreaseDecreaseInInventories (205,589)us-gaap_IncreaseDecreaseInInventories
Unearned revenues 1,171,699us-gaap_IncreaseDecreaseInDeferredRevenue 216,515us-gaap_IncreaseDecreaseInDeferredRevenue
Other assets (61,711)us-gaap_IncreaseDecreaseInOtherOperatingAssets (53,035)us-gaap_IncreaseDecreaseInOtherOperatingAssets
Accounts payable, accrued liabilities and other liabilities (1,205,775)nbs_IncreaseDecreaseInAccountsPayableAccruedExpensesAndOtherLiabilities (1,658,952)nbs_IncreaseDecreaseInAccountsPayableAccruedExpensesAndOtherLiabilities
Net cash used in operating activities (14,240,267)us-gaap_NetCashProvidedByUsedInOperatingActivities (11,253,540)us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash flows from investing activities:    
Proceeds from Sale and Maturity of Marketable Securities 7,049,000us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities 0us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities
Acquisition of property, plant and equipment (344,530)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (1,239,606)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Net cash provided by (used in) investing activities 6,704,470us-gaap_NetCashProvidedByUsedInInvestingActivities (1,239,606)us-gaap_NetCashProvidedByUsedInInvestingActivities
Cash flows from financing activities:    
Proceeds from exercise of options 0us-gaap_ProceedsFromStockOptionsExercised 71,360us-gaap_ProceedsFromStockOptionsExercised
Proceeds from exercise of warrants 0us-gaap_ProceedsFromWarrantExercises 1,275,000us-gaap_ProceedsFromWarrantExercises
Net proceeds from issuance of common stock 7,411,828us-gaap_ProceedsFromIssuanceOrSaleOfEquity 5,630,625us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Repayment of mortgage loan 0us-gaap_RepaymentsOfSecuredDebt (52,768)us-gaap_RepaymentsOfSecuredDebt
Proceeds from notes payable 340,270us-gaap_ProceedsFromNotesPayable 958,014us-gaap_ProceedsFromNotesPayable
Repayment of notes payable (259,077)us-gaap_RepaymentsOfNotesPayable (163,192)us-gaap_RepaymentsOfNotesPayable
Net cash provided by financing activities 7,493,021us-gaap_NetCashProvidedByUsedInFinancingActivities 7,719,039us-gaap_NetCashProvidedByUsedInFinancingActivities
Net decrease in cash and cash equivalents (42,776)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease (4,774,107)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents at beginning of period 19,174,061us-gaap_CashAndCashEquivalentsAtCarryingValue 46,133,759us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents at beginning of period 19,131,285us-gaap_CashAndCashEquivalentsAtCarryingValue 41,359,652us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash paid during the period for:    
Interest $ 372,550us-gaap_InterestPaid $ 93,100us-gaap_InterestPaid