XML 58 R4.htm IDEA: XBRL DOCUMENT v2.4.1.9
STATEMENTS OF OPERATIONS (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
REVENUES:    
Products $ 1,013,670us-gaap_SalesRevenueGoodsNet $ 1,429,419us-gaap_SalesRevenueGoodsNet
Total revenues 1,013,670us-gaap_SalesRevenueNet 1,429,419us-gaap_SalesRevenueNet
COST OF REVENUES:    
Products 995,683us-gaap_CostOfGoodsSold 2,792,080us-gaap_CostOfGoodsSold
Inventory valuation reserve 0us-gaap_InventoryWriteDown 742,168us-gaap_InventoryWriteDown
Total cost of revenues 995,683us-gaap_CostOfRevenue 3,534,248us-gaap_CostOfRevenue
GROSS MARGIN 17,987us-gaap_GrossProfit (2,104,829)us-gaap_GrossProfit
OPERATING EXPENSES:    
Research and development costs 1,377,611us-gaap_ResearchAndDevelopmentExpense 65,867us-gaap_ResearchAndDevelopmentExpense
Selling, general and administrative 3,977,676us-gaap_SellingGeneralAndAdministrativeExpense 6,480,031us-gaap_SellingGeneralAndAdministrativeExpense
Total operating expenses 5,355,287us-gaap_OperatingExpenses 6,545,898us-gaap_OperatingExpenses
OPERATING LOSS (5,337,300)us-gaap_OperatingIncomeLoss (8,650,727)us-gaap_OperatingIncomeLoss
OTHER EXPENSES:    
Rental and other income 1,483us-gaap_OtherNonoperatingIncome 0us-gaap_OtherNonoperatingIncome
Interest income 26,710us-gaap_InvestmentIncomeInterest 27,558us-gaap_InvestmentIncomeInterest
Interest expense - other (7,675)us-gaap_InterestExpense (2,037)us-gaap_InterestExpense
Interest expense - debt (188,516)us-gaap_InterestExpenseDebt 0us-gaap_InterestExpenseDebt
Change in fair value - derivative 74,883us-gaap_GainLossOnDerivativeInstrumentsNetPretax 966,736us-gaap_GainLossOnDerivativeInstrumentsNetPretax
Loss on asset disposals, net 0us-gaap_GainLossOnSaleOfOtherAssets (1,334)us-gaap_GainLossOnSaleOfOtherAssets
Loss on settlement with vendor (159,293)ztho_GainLossOnSettlementWithVendor 0ztho_GainLossOnSettlementWithVendor
Expense for modification of warrants 0ztho_ExpenseForModificationOfWarrantsPreviouslyIssuedForServices (5,780,457)ztho_ExpenseForModificationOfWarrantsPreviouslyIssuedForServices
Settlement gain 10,000us-gaap_GainLossRelatedToLitigationSettlement 8,000us-gaap_GainLossRelatedToLitigationSettlement
Total other expenses (242,408)us-gaap_NonoperatingIncomeExpense (4,781,534)us-gaap_NonoperatingIncomeExpense
NET LOSS (5,579,708)us-gaap_NetIncomeLoss (13,432,261)us-gaap_NetIncomeLoss
Less Preferred Dividends 0us-gaap_PreferredStockDividendsIncomeStatementImpact 56,144us-gaap_PreferredStockDividendsIncomeStatementImpact
NET LOSS ATTRIBUTABLE TO COMMON STOCKHOLDERS $ (5,579,708)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (13,488,405)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
NET LOSS PER SHARE - BASIC AND DILUTED (in dollars per share) $ (0.14)us-gaap_EarningsPerShareBasicAndDiluted $ (0.41)us-gaap_EarningsPerShareBasicAndDiluted
Weighted Average Number of Shares Basic and Diluted (in shares) 39,734,854us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 32,862,216us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding