|6 Months Ended|
Jun. 30, 2018
|Revenue Recognition and Deferred Revenue [Abstract]|
|Schedule of disaggregation revenue||
Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
No definition available.