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v2.4.1.9

Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Current deferred tax assets (liabilities): |  |
Accrued expenses | $ 114 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | $ 65 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Accounts receivable | 1,185 zyxi_DeferredTaxAssetsAccountsReceivable | 671 zyxi_DeferredTaxAssetsAccountsReceivable
Inventory | 1,603 us-gaap_DeferredTaxAssetsInventory | 970 us-gaap_DeferredTaxAssetsInventory
Amortization |  | 135 us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssets
Prepaid expenses | (90)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses | (99)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses
Stock based compensation | 23 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost | 23 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Tax credits and NOL carryforward |  | 233 zyxi_DeferredTaxAssetsTaxCreditAndOperatingLossCarryforwards
Other | 9 us-gaap_DeferredTaxAssetsOther | 9 us-gaap_DeferredTaxAssetsOther
Gross current deferred tax assets | 2,844 zyxi_DeferredTaxAssetsLiabilitiesGrossCurrent | 2,007 zyxi_DeferredTaxAssetsLiabilitiesGrossCurrent
Less: Valuation allowance | (2,844)us-gaap_DeferredTaxAssetsValuationAllowanceCurrent | (1,935)us-gaap_DeferredTaxAssetsValuationAllowanceCurrent
Net current deferred tax assets |  | 72 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent
Long-term deferred tax assets (liabilities): |  |
Amortization |  | 135 us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssets
Property and equipment | (553)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | (969)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Tax credits and NOL carryforward |  | 233 zyxi_DeferredTaxAssetsTaxCreditAndOperatingLossCarryforwards
Net long-term deferred tax liabilities | 1,216 zyxi_DeferredTaxAssetsLiabilitiesGrossNonCurrent | (72)zyxi_DeferredTaxAssetsLiabilitiesGrossNonCurrent
Less: valuation allowance | (1,216)us-gaap_DeferredTaxAssetsValuationAllowanceNoncurrent |
Other Noncurrent Assets |  |
Current deferred tax assets (liabilities): |  |
Amortization | 125 us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssets / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentAssetsMember |
Tax credits and NOL carryforward | 1,644 zyxi_DeferredTaxAssetsTaxCreditAndOperatingLossCarryforwards / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentAssetsMember |
Long-term deferred tax assets (liabilities): |  |
Amortization | 125 us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssets / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentAssetsMember |
Deferred rent |  | 897 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentAssetsMember
Tax credits and NOL carryforward | $ 1,644 zyxi_DeferredTaxAssetsTaxCreditAndOperatingLossCarryforwards / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentAssetsMember |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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