|
Income Taxes (Details) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Income Tax Contingency [Line Items] | |||
| Valuation allowance | $ 2,827,444 | $ 2,869,637 | |
| Interest rate swaps | 2,559,448 | 2,601,154 | |
| Net operating losses | 267,996 | 334,033 | |
| Unrecognized tax benefits | 4,900,000 | 1,400,000 | 8,100,000 |
| Unrecognized tax benefits that would impact effective tax rate | 3,400,000 | 800,000 | |
| Credits | 1,225,197 | 3,434,973 | |
| Amount of interest and penalties related to uncertain tax positions | 300,000 | ||
|
Federal
|
|||
| Income Tax Contingency [Line Items] | |||
| Operating loss carryforwards | 27,600,000 | ||
| Net operating loss, related to excess stock options | 27,600,000 | ||
| Credits | 1,200,000 | ||
| Federal tax credit relating to excess stock options | 1,200,000 | ||
|
State
|
|||
| Income Tax Contingency [Line Items] | |||
| Net operating losses | 267,996 | 268,483 | |
| Operating loss carryforwards | 5,700,000 | ||
| Net operating loss, related to excess stock options | $ 5,700,000 |
| X | ||||||||||
|
- Definition
Deferred Tax Assets, Derivative Instruments, Net No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Assets, Tax Credit Carryforwards, Excess Stock Options No definition available.
|
| X | ||||||||||
|
- Definition
Net Operaing Loss, Related to Excess Stock Options No definition available.
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net amount of all increases and decreases in unrecognized tax benefits for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|