|
Fair Value (Details) (USD $)
|
12 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
Marketable equity security
|
Dec. 31, 2011
Marketable equity security
|
Dec. 31, 2012
Asset-backed securities
|
Dec. 31, 2011
Asset-backed securities
|
Dec. 31, 2011
Recurring basis
Level 1
|
Dec. 31, 2011
Recurring basis
Level 1
Marketable equity security
|
Dec. 31, 2012
Recurring basis
Level 3
|
Dec. 31, 2011
Recurring basis
Level 3
|
Dec. 31, 2012
Recurring basis
Level 3
Asset-backed securities
|
Dec. 31, 2011
Recurring basis
Level 3
Asset-backed securities
|
Dec. 31, 2012
Recurring basis
Level 3
Asset-backed securities
Discounted cash flow model
|
Dec. 31, 2012
Recurring basis
Fair Value
|
Dec. 31, 2011
Recurring basis
Fair Value
|
Dec. 31, 2011
Recurring basis
Fair Value
Marketable equity security
|
Dec. 31, 2012
Recurring basis
Fair Value
Asset-backed securities
|
Dec. 31, 2011
Recurring basis
Fair Value
Asset-backed securities
|
|
| Fair value measurements | ||||||||||||||||
| Investment securities available for sale | $ 1,000,000 | $ 1,000,000 | $ 1,670,000 | $ 2,798,000 | $ 1,670,000 | $ 2,798,000 | $ 1,670,000 | $ 3,798,000 | $ 1,000,000 | $ 1,670,000 | $ 2,798,000 | |||||
| Investment securities available for sale at amortized cost | $ 0 | $ 1,100,000 | $ 1,700,000 | $ 2,800,000 | ||||||||||||
| Discount rate (as a percent) | 20.00% | |||||||||||||||