Summary of Significant Accounting Policies - Summary of Contract Assets and Liabilities (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Total deferred revenue	$ 7,433,856	$ 6,314,632
Less: Long-term deferred revenue	(523,646)	(611,863)
Total current deferred revenue	6,910,210	5,702,769
Contract Assets - Unbilled Receivables [Member]
Total deferred revenue	9,167	2,917
Product Shipped, Revenue Deferred [Member]
Total deferred revenue	934,136	941,724
Deferred Service and License Fees [Member]
Total deferred revenue	$ 6,499,720	$ 5,372,908

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.

No definition available.

+ Details

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- Definition

The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6935-107765

+ Details

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- Definition

The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. 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.

+ References

+ Details

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- Details

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- Details

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- Details

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