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Income Taxes (Schedule of Deferred Tax Assets and Liabilities, Net) (Details) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
Deferred Tax Assets    
Net operating loss and tax credits $ 3,881,415 $ 2,274,994
Property and equipment and intangibles 331,301 326,499
Allowance for accounts receivable 170,733 145,200
Reserve for expired product 771,034 849,579
Inventory 214,654 1,154,507
Deferred charges 738,541 660,973
Cumulative compensation costs incurred on deductible equity awards 639,263 1,675,757
Total deferred tax assets 6,746,941 7,087,509
Deferred Tax Liabilities    
Intangible assets (3,238,511) (3,162,502)
Net deferred tax assets, before valuation allowance 3,508,430 3,925,007
Less: deferred tax asset valuation allowance (388,500) (185,497)
Net deferred tax assets $ 3,119,930 $ 3,739,510