Commitments and Contingencies (Lease Obligations) (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
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| Commitments and Contingencies Disclosure [Abstract] | ||||
| Rent expense | $ 268,000 | $ 258,000 | $ 811,000 | $ 808,000 |
| Sub lease income | $ 96,000 | $ 90,000 | $ 288,000 | $ 279,000 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
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| X | ||||||||||
- Definition The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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