| Total assets | 224.8M | 231.6M | 224.7M | 226.1M | 
                
                        | Current assets | — | — | — | — | 
                
                        | Cash | — | — | 1.8M | — | 
                
                        | Cash equivalents | — | — | — | — | 
                
                        | Cash and cash equivalents | — | — | 1.8M | — | 
                
                        | Other short term investments | — | — | — | — | 
                
                        | Accounts receivable | — | — | — | — | 
                
                        | Other receivables | — | — | — | — | 
                
                        | Inventory | — | — | — | — | 
                
                        | Prepaid assets | 134.9K | 42.3K | 13.4K | 45.7K | 
                
                        | Restricted cash | — | — | — | — | 
                
                        | Assets held for sale | — | — | — | — | 
                
                        | Hedging assets | — | — | — | — | 
                
                        | Other current assets | — | — | — | — | 
                
                        | Non current assets | — | — | — | — | 
                
                        | Properties | — | — | — | — | 
                
                        | Land and improvements | — | — | — | — | 
                
                        | Machinery furniture equipment | — | — | — | — | 
                
                        | Construction in progress | — | — | — | — | 
                
                        | Leases | — | — | — | — | 
                
                        | Accumulated depreciation | — | — | — | — | 
                
                        | Goodwill | — | — | — | — | 
                
                        | Investment properties | — | — | — | — | 
                
                        | Financial assets | — | — | — | — | 
                
                        | Intangible assets | — | — | — | — | 
                
                        | Investments and advances | 222.4M | 229.3M | 219.8M | 223.7M | 
                
                        | Other non current assets | — | — | — | — | 
                
                        | Total liabilities | 84.2M | 87.4M | 84.5M | — | 
                
                        | Current liabilities | — | — | — | — | 
                
                        | Accounts payable | 1.3M | 6.2M | 2.4M | 109.9K | 
                
                        | Accrued expenses | — | — | — | — | 
                
                        | Short term debt | — | — | — | — | 
                
                        | Deferred revenue | — | — | — | — | 
                
                        | Tax payable | — | — | — | — | 
                
                        | Pensions | — | — | — | — | 
                
                        | Other current liabilities | — | — | — | — | 
                
                        | Non current liabilities | — | — | — | — | 
                
                        | Long term provisions | — | — | — | — | 
                
                        | Long term debt | 18.7K | 2.9K | — | — | 
                
                        | Provision for risks and charges | — | — | — | — | 
                
                        | Deferred liabilities | — | — | — | — | 
                
                        | Derivative product liabilities | — | — | — | — | 
                
                        | Other non current liabilities | — | — | — | — | 
                
                        | Shareholders equity |  |  |  |  | 
                
                        | Common stock | 155.1M | 155.1M | 156.2M | 156.2M | 
                
                        | Retained earnings | -14.6M | -11.0M | -16.0M | -16.9M | 
                
                        | Other shareholders equity | — | — | — | — | 
                
                        | Total shareholders equity | 140.6M | 144.2M | 140.2M | 139.3M | 
                
                        | Additional paid in capital | — | — | — | — | 
                
                        | Treasury stock | — | — | — | — | 
                
                        | Minority interest | — | — | — | — |