The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Note 2 - Recapitalization (Details Textual) - USD ($) $ / shares in Units, $ in Millions	Apr. 17, 2018	Apr. 16, 2018	Mar. 31, 2019	Dec. 31, 2018
Conversion of Stock, Cash Paid Per Share Converted		$ 19.59
Common Stock, Par or Stated Value Per Share	$ 0.001		$ 0.001	$ 0.001
Conversion of Class B Common Stock Into Class A Common Stock [Member]
Conversion of Stock, Shares Issued	3,617,615
Payments Related to Recapitalization	$ 72.4