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Consolidated Balance Sheets (Unaudited) (USD $)
Dec. 31, 2014
Jun. 30, 2014
Current assets:    
Cash and cash equivalents $ 795,104us-gaap_CashAndCashEquivalentsAtCarryingValue $ 1,197,080us-gaap_CashAndCashEquivalentsAtCarryingValue
Trade accounts receivable, net of allowance of $5,001 and $5,801 2,411,070us-gaap_AccountsReceivableNetCurrent 2,472,876us-gaap_AccountsReceivableNetCurrent
Inventories, net 3,310,436us-gaap_InventoryNet 3,322,983us-gaap_InventoryNet
Other receivables 199,160us-gaap_OtherReceivablesNetCurrent 199,976us-gaap_OtherReceivablesNetCurrent
Prepaid expenses and other assets 324,448us-gaap_PrepaidExpenseAndOtherAssetsCurrent 298,203us-gaap_PrepaidExpenseAndOtherAssetsCurrent
Total current assets 7,040,218us-gaap_AssetsCurrent 7,491,118us-gaap_AssetsCurrent
Property and equipment, net 3,308,204us-gaap_PropertyPlantAndEquipmentNet 3,173,905us-gaap_PropertyPlantAndEquipmentNet
Other assets 27,737us-gaap_OtherAssetsNoncurrent 27,737us-gaap_OtherAssetsNoncurrent
Total assets 10,376,159us-gaap_Assets 10,692,760us-gaap_Assets
Current liabilities:    
Accounts payable 1,901,501us-gaap_AccountsPayableCurrent 1,809,532us-gaap_AccountsPayableCurrent
Accrued liabilities 114,843us-gaap_AccruedLiabilitiesCurrent 124,582us-gaap_AccruedLiabilitiesCurrent
Accrued payroll and benefits 580,625us-gaap_EmployeeRelatedLiabilitiesCurrent 477,623us-gaap_EmployeeRelatedLiabilitiesCurrent
Deferred revenue 3,500us-gaap_DeferredRevenueCurrent  
Loan payable, current portion 473,451us-gaap_LoansPayableCurrent 54,982us-gaap_LoansPayableCurrent
Capital lease obligation, current portion 4,095us-gaap_CapitalLeaseObligationsCurrent 6,196us-gaap_CapitalLeaseObligationsCurrent
Total current liabilities 3,078,015us-gaap_LiabilitiesCurrent 2,472,915us-gaap_LiabilitiesCurrent
Capital lease obligations, less current portion 4,973us-gaap_CapitalLeaseObligationsNoncurrent 6,270us-gaap_CapitalLeaseObligationsNoncurrent
Deferred rent 34,221us-gaap_DeferredRentCreditNoncurrent 76,490us-gaap_DeferredRentCreditNoncurrent
Warrant liability 250,605us-gaap_DerivativeLiabilitiesNoncurrent 731,431us-gaap_DerivativeLiabilitiesNoncurrent
Loan payable, less current portion    109,963us-gaap_LongTermLoansPayable
Total liabilities 3,367,814us-gaap_Liabilities 3,397,069us-gaap_Liabilities
Stockholders' equity:    
Preferred stock: Series D, $.01 par value, voting; 5,000,000 shares authorized; none issued and outstanding      
Common stock: Class A, $.01 par value, voting; 40,000,000 shares authorized; 14,304,283 and 14,293,305 shares issued and outstanding, respectively 143,043us-gaap_CommonStockValue 142,933us-gaap_CommonStockValue
Additional paid-in capital 211,963,328us-gaap_AdditionalPaidInCapitalCommonStock 211,812,134us-gaap_AdditionalPaidInCapitalCommonStock
Accumulated other comprehensive income 50,868us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax 51,681us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Accumulated deficit (205,148,894)us-gaap_RetainedEarningsAccumulatedDeficit (204,711,057)us-gaap_RetainedEarningsAccumulatedDeficit
Total stockholders' equity 7,008,345us-gaap_StockholdersEquity 7,295,691us-gaap_StockholdersEquity
Total liabilities and stockholders' equity $ 10,376,159us-gaap_LiabilitiesAndStockholdersEquity $ 10,692,760us-gaap_LiabilitiesAndStockholdersEquity