15. Commitment and Contingencies (Tables)
|3 Months Ended|
Mar. 31, 2019
|Commitments and Contingencies Disclosure [Abstract]|
|Future maturities of operating leases||
Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.
Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef