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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2013
Income Tax Disclosure [Abstract]  
Schedule of deferred tax assets and liabilities, net
The components of the Company's net deferred tax assets at December 31 are as follows:
 
 
2013
 
2012
 
 
 
 
 
Deferred Tax Assets
 
 
 
 
Net operating loss and tax credits
 
$
2,144,460

 
$
1,159,865

Property and equipment and intangibles
 
214,478

 
153,361

Allowance for accounts receivable
 
235,446

 
74,362

Reserve for expired product
 
600,406

 
706,960

Inventory
 
1,495,895

 
1,185,419

Deferred charges
 
666,236

 
582,480

Cumulative compensation costs incurred on deductible equity awards
 
1,378,690

 
1,251,382

Total deferred tax assets
 
6,735,611

 
5,113,829

 
 
 
 
 
Deferred Tax Liabilities
 
 
 
 
Intangible assets
 
(2,683,587
)
 
(2,665,022
)
Net deferred tax assets, before valuation allowance
 
4,052,024

 
2,448,807

Less: deferred tax asset valuation allowance
 
(131,617
)
 
(108,318
)
Net deferred tax assets
 
$
3,920,407

 
$
2,340,489

Schedule of federal and state net operating loss carryforwards
The following table summarizes the amount and year of expiration of the Company's federal and state net operating loss carryforwards as of December 31, 2013:
Years of expiration
 
Federal
 
State
 
 
 
 
 
2014
 
$

 
$
2,249,078

2015 - 2017
 

 
504,822

2018 - 2024
 

 
51,629,844

2029
 
43,398,774

 

2033
 
$
1,975,521

 
$
2,032,527

Total federal and state net operating loss carryforwards
 
$
45,374,295

 
$
56,416,271

Schedule of the components of income tax benefit (expense)
Income tax (expense) benefit includes the following components for the years ended December 31:
 
 
2013
 
2012
 
2011
 
 
 
 
 
 
 
Current:
 
 
 
 
 
 
Federal
 
$
(45,287
)
 
$
(3,185,743
)
 
$
(1,992,804
)
State and other
 
(11,580
)
 
(820,669
)
 
(422,290
)
Total current income tax expense
 
(56,867
)
 
(4,006,412
)
 
(2,415,094
)
 
 
 
 
 
 
 
Deferred:
 
 
 
 
 
 
Federal
 
1,426,701

 
677,190

 
(1,543,261
)
State
 
153,217

 
84,446

 
(121,849
)
Total deferred income tax benefit (expense)
 
1,579,918

 
761,636

 
(1,665,110
)
Total income tax expense
 
$
1,523,051

 
$
(3,244,776
)
 
$
(4,080,204
)
Schedule of the components of deferred tax benefit (expense)
Deferred income tax is comprised of the following components for the years ended December 31:
 
 
2013
 
2012
 
2011
 
 
 
 
 
 
 
Deferred tax (expense) benefit, excluding items below
 
$
37,940

 
$
(39,870
)
 
$
439,744

Inventory write-downs
 
310,477

 
179,755

 
817,840

Creation of operating loss carryforwards
 
788,342

 
25,552

 
11,348

Creation (utilization) of tax credit carryforwards
 
196,631

 
108,699

 
56,395

Change in valuation allowance due to changes in net deferred tax asset balances
 
(23,299
)
 
(15,291
)
 
(13,597
)
Deductible equity awards
 
127,308

 
667,171

 
(330,329
)
Allowance for accounts receivable
 
161,084

 

 

Intangible assets
 
(18,565
)
 
(164,380
)
 
(2,646,511
)
Deferred income tax benefit (expense)
 
$
1,579,918

 
$
761,636

 
$
(1,665,110
)
Schedule of effective tax rate reconciliation
The Company’s effective income tax rate for 2013, 2012 and 2011 reconciles with the federal statutory tax rate as follows: 
 
 
2013
 
2012
 
2011
 
 
 
 
 
 
 
Federal tax expense at statutory rate
 
34
 %
 
34
 %
 
35
 %
State income tax expense (net of federal income tax benefit)
 
4
 %
 
4
 %
 
4
 %
Permanent differences associated with general business credits
 
5
 %
 
 %
 
(1
)%
Permanent differences associated with stock options
 
 %
 
(5
)%
 
2
 %
Other permanent differences
 
 %
 
3
 %
 
2
 %
Other
 
(1
)%
 
 %
 
 %
Net income tax expense
 
42
 %
 
36
 %
 
42
 %