Note 1 - Nature of Business (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Retained Earnings (Accumulated Deficit), Ending Balance	$ (331,797)	$ (333,262)
Working Capital Deficiency	114,172
Long-term Debt, Current Maturities, Total	$ 100,820	$ 96,847

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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