CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - EUR (€) € in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Flow from Operating Activities
Net loss	€ (1,246)	€ (1,164)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation	4	5
Changes in operating assets and liabilities
Receivables	5	(167)
Accrued interest on convertible notes payable	767	699
Accrued interest on non-convertible notes payable	44	32
Accounts payable	93	69
Deferred grant	0	46
Other	6	26
Net cash used in operating activities	(327)	(454)
Cash Flows from Investing Activities
Purchase of property and equipment	(10)	(5)
Net cash used in investing activities	(10)	(5)
Effect of foreign exchange rate on cash	(8)	7
Net change in cash	(345)	(452)
Cash, beginning of period	1,083	683
Cash, end of period	738	231
Supplemental Disclosure of Cash Flow Information:
Cash paid for taxes	€ 0	€ 0