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Income Taxes | 12 Months Ended
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Dec. 31, 2015
Income Taxes |
Income Taxes | 10. Income Taxes The Company has temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and their respective income tax basis, as measured by enacted state and federal rates as follows:
December 31 |  | 2015 |  | 2014 |
Deferred tax assets: |  |  |  |  |
Net operating loss carryforwards |  | 33,424,100 |  | 29,263,100 |
Charitable contributions |  | 500 |  | 500 |
Inventory reserves |  | 267,700 |  | 152,000 |
Amortization |  | 51,400 |  | 123,500 |
Allowance for doubtful accounts |  | 72,300 |  | 35,400 |
Stock-based compensation |  | 260,600 |  | 107,900 |
Total deferred tax assets |  | 34,076,600 |  | 29,682,400 |
Deferred tax liabilities: |  |  |  |  |
Depreciation |  | (62,400) |  | (85,700) |
Total deferred tax assets (liabilities) |  | (62,400) |  | (85,700) |
Net deferred tax assets |  | 34,014,200 |  | 29,596,700 |
Valuation allowance |  | (34,014,200) |  | (29,596,700) |
As of December 31, 2015, the Company had net operating loss carry forwards of approximately $88.8 million to offset future taxable income which expire in various years through 203 5. A valuation allowance is recorded to reduce the deferred tax assets reported if, based on the weight of the evidence, it is more likely than not that a portion or none of the deferred tax assets will be realized. After consideration of all the evidence, including reversal of deferred tax liabilities, future taxable income and other factors, management has determined that a full valuation allowance is necessary as of December 31, 2015 and 2014. The valuation allowance increased by $4,452,000 and $6,202,700 during 2015 and 2014, respectively. The Company had no income tax expense or income tax benefit for 2014 and 2015 due to incurrence of net operating losses. The Company does not believe there are any additional tax refund opportunities currently available.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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