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Income Taxes (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Examination [Line Items]      
Current Federal Tax Expense (Benefit) $ 0us-gaap_CurrentFederalTaxExpenseBenefit $ 0us-gaap_CurrentFederalTaxExpenseBenefit $ 0us-gaap_CurrentFederalTaxExpenseBenefit
Deferred State and Local Income Tax Expense (Benefit) (263,200)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 303,200us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit (175,500)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Federal Income Tax Expense (Benefit), Continuing Operations 159,000us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations 476,900us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations 0us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations
State and Local Income Tax Expense (Benefit), Continuing Operations (263,200)us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations 303,200us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations (175,500)us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
Deferred Federal Income Tax Expense (Benefit) 159,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit 476,900us-gaap_DeferredFederalIncomeTaxExpenseBenefit 0us-gaap_DeferredFederalIncomeTaxExpenseBenefit
Current State and Local Tax Expense (Benefit) 0us-gaap_CurrentStateAndLocalTaxExpenseBenefit 0us-gaap_CurrentStateAndLocalTaxExpenseBenefit 0us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Current Income Tax Expense (Benefit) 0us-gaap_CurrentIncomeTaxExpenseBenefit 0us-gaap_CurrentIncomeTaxExpenseBenefit 0us-gaap_CurrentIncomeTaxExpenseBenefit
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate    
Operating Loss Carryforwards 177,200,000us-gaap_OperatingLossCarryforwards 110,600,000us-gaap_OperatingLossCarryforwards  
Deferred income taxes (104,200)us-gaap_DeferredIncomeTaxExpenseBenefit 780,100us-gaap_DeferredIncomeTaxExpenseBenefit (175,500)us-gaap_DeferredIncomeTaxExpenseBenefit
Income Tax Expense (Benefit) (104,202)us-gaap_IncomeTaxExpenseBenefit 780,104us-gaap_IncomeTaxExpenseBenefit (175,533)us-gaap_IncomeTaxExpenseBenefit
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate (18,894,000)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate (13,159,800)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate (12,334,100)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Income Tax Reconciliation, State and Local Income Taxes (3,435,000)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes (3,430,900)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes (2,154,100)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Permanent non deductible expenses for U.S. taxes 1,094,600nbs_PermanentNonDeductibleExpensesForUSTaxes 1,798,200nbs_PermanentNonDeductibleExpensesForUSTaxes (2,781,400)nbs_PermanentNonDeductibleExpensesForUSTaxes
Restatement of Prior Year Income, Net of Tax (25,500)us-gaap_RestatementOfPriorYearIncomeNetOfTax (91,400)us-gaap_RestatementOfPriorYearIncomeNetOfTax 321,600us-gaap_RestatementOfPriorYearIncomeNetOfTax
Income Tax Reconciliation, Other Adjustments 0us-gaap_IncomeTaxReconciliationOtherAdjustments (3,822,900)us-gaap_IncomeTaxReconciliationOtherAdjustments (384,800)us-gaap_IncomeTaxReconciliationOtherAdjustments
Income Tax Reconciliation, Undistributed Foreign Earnings 0nbs_IncomeTaxReconciliationUndistributedForeignEarnings 0nbs_IncomeTaxReconciliationUndistributedForeignEarnings (1,810,300)nbs_IncomeTaxReconciliationUndistributedForeignEarnings
Income Tax Reconciliation, Change in Enacted Tax Rate 1,075,700us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate (1,094,800)us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate 525,700us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate
Deferred Tax Assets, Valuation Allowance 20,080,000us-gaap_DeferredTaxAssetsValuationAllowance 20,581,700us-gaap_DeferredTaxAssetsValuationAllowance 18,441,900us-gaap_DeferredTaxAssetsValuationAllowance
Unrecognized Tax Benefits Resulting in Net Operating Loss Carryforward 69,047,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 43,334,800us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 25,727,700us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Deferred Tax Assets, Deferred Income 0us-gaap_DeferredTaxAssetsDeferredIncome 10,500us-gaap_DeferredTaxAssetsDeferredIncome 23,100us-gaap_DeferredTaxAssetsDeferredIncome
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities (7,800)us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities 13,600us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities 15,200us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost 9,577,200us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 7,971,900us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 5,466,700us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Deferred Tax Assets, Goodwill and Intangible Assets 715,100us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets 704,600us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets 287,300us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets
Deferred Tax Assets, Other 0us-gaap_DeferredTaxAssetsOther 0us-gaap_DeferredTaxAssetsOther (348,700)us-gaap_DeferredTaxAssetsOther
Deferred Tax Assets, Charitable Contribution Carryforwards 409,800us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards 414,900us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards 391,800us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts 296,900us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts 304,300us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts 239,700us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts
Deferred Tax Assets, Capital Loss Carryforwards 6,925,100us-gaap_DeferredTaxAssetsCapitalLossCarryforwards 7,036,800us-gaap_DeferredTaxAssetsCapitalLossCarryforwards 6,644,500us-gaap_DeferredTaxAssetsCapitalLossCarryforwards
Deferred Tax Assets, Tax Credit Carryforwards, Other 609,700us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther 0us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther 0us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther
Deferred Tax Assets, Net 87,573,000us-gaap_DeferredTaxAssetsNet 59,791,400us-gaap_DeferredTaxAssetsNet 39,144,700us-gaap_DeferredTaxAssetsNet
Deferred Tax Liabilities Accumulated depreciation (18,800)nbs_DeferredTaxLiabilitiesAccumulatedDepreciation (64,800)nbs_DeferredTaxLiabilitiesAccumulatedDepreciation 0nbs_DeferredTaxLiabilitiesAccumulatedDepreciation
Deferred Tax Liabilities, Goodwill and Intangible Assets, Intangible Assets (18,176,300)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets (4,379,200)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets (3,599,100)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
Deferred Tax Liabilities, Gross 18,195,100us-gaap_DeferredIncomeTaxLiabilities 4,444,000us-gaap_DeferredIncomeTaxLiabilities 3,599,100us-gaap_DeferredIncomeTaxLiabilities
Deferred Tax Assets (Liabilities), Net 69,377,900us-gaap_DeferredTaxAssetsLiabilitiesNet 55,347,400us-gaap_DeferredTaxAssetsLiabilitiesNet 3,599,100us-gaap_DeferredTaxAssetsLiabilitiesNet
Valuation Allowances and Reserves, Balance (87,554,100)us-gaap_ValuationAllowancesAndReservesBalance (59,726,600)us-gaap_ValuationAllowancesAndReservesBalance (39,144,700)us-gaap_ValuationAllowancesAndReservesBalance
Deferred Tax Liabilities $ (18,176,200)us-gaap_DeferredTaxLiabilities $ (4,379,200)us-gaap_DeferredTaxLiabilities $ (35,545,600)us-gaap_DeferredTaxLiabilities