Summary of Significant Accounting Policies - Schedule of Contract Balances (Details) - USD ($) |
Mar. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Accounting Policies [Abstract] | ||
| Receivables, which are included in 'Accounts Receivable' | $ 443,000 | $ 475,000 |
| Contract liabilities (deferred revenue) | $ 71,000 | $ 59,000 |
| 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://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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