Quarterly report pursuant to Section 13 or 15(d)

Bank and Other Borrowings - Summary of Long-term Bank and Other Borrowings (Details)

v3.20.1
Bank and Other Borrowings - Summary of Long-term Bank and Other Borrowings (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 26,546 $ 23,698
Less: current portion 5,925 7,564
Total long-term portion $ 20,621 16,134
Contractual Interest Rate, Percentage 1.00%  
Unicredit S.p.A. (Line A Tranche (1)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 3,219 $ 3,609
Maturity 2023-01  
Contractual Interest Rate Euribor 3 months + 3.10%  
Contractual Interest Rate, Percentage 3.10%  
Interest Nominal Rate 2.80% 2.80%
Unicredit S.p.A. (Line A Tranche (2)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 151 $ 167
Maturity 2023-05  
Contractual Interest Rate Euribor 3 months + 3.10%  
Contractual Interest Rate, Percentage 3.10%  
Interest Nominal Rate 2.80% 2.80%
Unicredit S.p.A. (Line B)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 2,941 $ 3,229
Maturity 2023-11  
Contractual Interest Rate Euribor 3 months + 2.90%  
Contractual Interest Rate, Percentage 2.90%  
Interest Nominal Rate 2.60% 2.60%
Unicredit S.p.A. (Line C)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 2,497 $ 2,787
Maturity 2023-02  
Contractual Interest Rate Euribor 3 months + 3.90%  
Contractual Interest Rate, Percentage 3.90%  
Interest Nominal Rate 3.53% 3.53%
Intesa San Paolo S.p.A. (Line 1)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 834 $ 988
Maturity 2021-10  
Contractual Interest Rate Euribor 3 months + 1.80%  
Contractual Interest Rate, Percentage 1.80%  
Interest Nominal Rate 1.88% 1.88%
Intesa San Paolo S.p.A. (Line 2)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 3,841 $ 4,183
Maturity 2023-10  
Contractual Interest Rate Euribor 3 months + 2.60%  
Contractual Interest Rate, Percentage 2.60%  
Interest Nominal Rate 2.60% 2.60%
UBI Banca S.p.A. (Line 1)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 257 $ 332
Maturity 2021-02  
Contractual Interest Rate, Percentage 1.25%  
Interest Nominal Rate 1.25% 1.25%
UBI Banca S.p.A. (Line 2)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 1,198 $ 1,499
Maturity 2021-04  
Contractual Interest Rate Euribor 3 months +1.95%  
Contractual Interest Rate, Percentage 1.95%  
Interest Nominal Rate 1.55% 1.55%
Monte dei Paschi di Siena S.p.A. (Line 1)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 457 $ 521
Maturity 2022-04  
Contractual Interest Rate, Percentage 0.95%  
Interest Nominal Rate 0.95% 0.95%
Monte dei Paschi di Siena S.p.A. (Line 2)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 2,190  
Maturity 2023-06  
Contractual Interest Rate, Percentage 1.50%  
Interest Nominal Rate 1.50%  
Banco Popolare di Milano S.p.A. (Line 2)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities   $ 3,893
Maturity 2022-09  
Contractual Interest Rate Euribor 3 months + 2.00%  
Contractual Interest Rate, Percentage 2.00%  
Interest Nominal Rate   2.00%
Banco Popolare di Milano S.p.A. (Line 1)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 1,312 $ 1,336
Maturity 2023-06  
Contractual Interest Rate Euribor 3 months + 2.00%  
Contractual Interest Rate, Percentage 2.00%  
Interest Nominal Rate 2.00% 2.00%
Banco Popolare di Milano S.p.A. (Line 3)    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 6,517  
Maturity 2024-03  
Contractual Interest Rate Euribor 3 months + 3.00%  
Contractual Interest Rate, Percentage 3.00%  
Interest Nominal Rate 2.16%  
Simest 1    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 275 $ 280
Maturity 2022-12  
Contractual Interest Rate, Percentage 0.50%  
Interest Nominal Rate 0.50% 0.50%
Simest 2    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 273 $ 279
Maturity 2022-12  
Contractual Interest Rate, Percentage 0.50%  
Interest Nominal Rate 0.50% 0.50%
Simest 3    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 503 $ 512
Maturity 2022-12  
Contractual Interest Rate, Percentage 0.50%  
Interest Nominal Rate 0.50% 0.50%
Finlombarda S.p.A.    
Bank And Other Borrowings [Line Items]    
Total Financial Liabilities $ 81 $ 83
Maturity 2020-12  
Contractual Interest Rate, Percentage 0.50%  
Interest Nominal Rate 0.50% 0.50%