Summary of Significant Accounting Policies - Schedule of Contract Balances (Details) - USD ($) |
Mar. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Accounting Policies [Abstract] | ||
| Receivables, which are included in 'Accounts Receivable' | $ 323,000 | $ 207,000 |
| Contract liabilities (deferred revenue) | $ 285,000 | $ 320,000 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount billed to customers under long-term contracts or programs but not paid. Excludes amounts due that have been withheld because of retainage provisions in a contract. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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