General Information - Additional Information (Details) $ in Thousands	Sep. 30, 2019 USD ($) Patent	Jul. 01, 2019 USD ($)
General Information [Line Items]
Number of patents granted \| Patent	37
Number of additional patents in process \| Patent	5
ROU asset	$ 1,527	$ 1,608
Lease obligation	$ 1,541
ASU 2016-02
General Information [Line Items]
ROU asset		1,600
Lease obligation		1,600
Cumulative impact of change in accounting policy		$ 230

General information.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
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-Section 45
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