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Stockholders’ equity (Details Narrative) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Treasury shares, acquired	135,360	28,668,037
Treasury stock, acquired, average purchase price	$ 0.74	$ 0.07
Treasury shares, sold	6,879,860	26,249,508
Treasury shares, sold, average sale price	$ 0.63	$ 1.17
Common Shares - Class B
Class of Stock [Line Items]
Shares repurchased	135,360
Common stock, par value	$ 0.05	0.05
Common Shares - Class A
Class of Stock [Line Items]
Common stock, par value	$ 0.01	$ 0.01

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Face amount or stated value per share of common stock.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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