Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)

v3.19.1
Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Accounting Policies [Abstract]    
Accounts receivable $ 6,015 $ 6,882
Less allowances for doubtful accounts (3,277) (3,276)
Balance $ 2,738 $ 3,606