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Wind-Down and Exit Costs | 12 Months Ended
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Dec. 31, 2012
Wind-down and exit costs [Abstract] |
Wind-down and exit costs | Note 10. Wind-down and exit costs Rhode Island In October 1999, we relocated to California from Rhode Island and established a wind-down reserve for the estimated lease payments and operating costs of the Rhode Island facilities. We periodically re-evaluate and adjust the reserve by considering various factors such as our lease payments through to the end of the lease, operating expenses, the current real estate market in Rhode Island, and estimated subtenant income based on actual and projected occupancy. We are no longer actively seeking additional subtenants due to the short time remaining on the lease period. The components of our wind-down reserve at December 31 are as follows:
|  | 2012 |  |  | 2011 |
Accrued wind-down reserve at beginning of period |  | $ | 1,683,000 |  |  | $ | 2,644,000 |
Less actual expenses recorded against estimated reserve during the period |  |  | (1,185,000 | ) |  |  | (1,248,000 | )
Additional expense recorded to revise estimated reserve at period-end |  |  | 356,000 |  |  |  | 287,000 |
Revised reserve at period-end |  |  | 854,000 |  |  |  | 1,683,000 |
Add deferred rent at period end |  |  | 249,000 |  |  |  | 452,000 |
Total accrued wind-down expenses at period-end (current and non current) |  | $ | 1,103,000 |  |  | $ | 2,135,000 |
Accrued wind-down expenses, current portion |  | $ | 1,103,000 |  |  | $ | 1,361,000 |
Non current portion |  |  | — |  |  |  | 774,000 |
Total accrued wind-down expenses |  | $ | 1,103,000 |  |  | $ | 2,135,000 |

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