Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Deficiency) - Stockholder Rights Plan (Details)

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Stockholders' Equity (Deficiency) - Stockholder Rights Plan (Details) - Series B Junior Participating Preferred Stock
May 06, 2019
Vote
$ / shares
Stockholder Rights Plan  
Preferred stock conversion basis 1
Purchase price (in dollars per share) $ 5.22
Beneficial ownership of common stock (as a percent) 4.90%
Preferred stock dividend minimum if declared $ 1.00
Preferred stock rights ratio over common stock 1,000
Number of votes per share | Vote 1,000
Ratio of consideration received in event of conversion or exchange transaction 1,000