Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Accounting Policy Information (Details)

v3.19.2
Basis of Presentation and Accounting Policy Information (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Mar. 31, 2019
Jun. 30, 2018
Sep. 30, 2017
Mar. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]          
Cash and cash equivalents $ 35,269 $ 31,402 $ 31,118    
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows 37,794 $ 33,841 33,548 $ 33,548 $ 36,327
Prepaid Expenses and Other Current Assets          
Error Corrections and Prior Period Adjustments Restatement [Line Items]          
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows 1,698   1,743    
Other Assets          
Error Corrections and Prior Period Adjustments Restatement [Line Items]          
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows $ 827   $ 687