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INCOME TAXES - Summary of net deferred tax assets (Details 2) - USD ($)
Jun. 30, 2015
Jun. 30, 2014
Deferred tax assets:    
Net operating loss carryforwards $ 46,919,363 $ 47,776,042
Asset reserves 791,915 391,155
Deferred research and development costs 1,009,303 710,640
Intangibles 605,836 907,274
Deferred gain on assets under sale-leaseback transaction 632,317 460,902
Stock-based compensation 223,883 250,426
Other 436,510 348,885
Deferred tax assets, gross 50,619,127 50,845,324
Deferred tax liabilities:    
Fixed assets (491,990) (683,159)
Intangibles and goodwill (84,520) (67,459)
Deferred tax assets, net 50,042,617 50,094,706
Valuation allowance (22,996,634) (22,833,685)
Deferred tax assets (liabilities), net of allowance 27,045,983 27,261,021
Less current portion 1,257,796 907,691
Deferred tax assets (liabilities), non-current $ 25,788,187 $ 26,353,330