Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ / shares in Thousands	Jun. 30, 2019	Dec. 31, 2018
Deferred tax assets, valuation allowance	$ 6,571,000	$ 6,545,000
Preferred stock, no par value (in dollars per share)
Preferred stock, authorized (in shares)	250,000,000	250,000,000
Preferred stock, issued (in shares)	0	0
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	67,022,568	45,572,568

Face amount per share of no-par value common stock.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer.

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