Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - Common Stock [Member]	Aug. 26, 2018 $ / shares
Minimum [Member]
Issuance of common stock, per share (in dollars per share)	$ 6.82
Maximum [Member]
Issuance of common stock, per share (in dollars per share)	$ 14.39