Subsequent Events (Detail Narrative) - Subsequent Event [Member] - Joint Development Agreement [Member] - Sumitomo Corporation of Americas [Member] $ in Thousands	1 Months Ended
Jul. 31, 2019 USD ($)
Commitment fee	$ 250
Agreement term	10 years
Commitment fee payable	$ 125

Amount of the fee for available but unused credit capacity under the credit facility.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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