XML 25 R7.htm IDEA: XBRL DOCUMENT v3.20.1
Consolidated Statements of Cash Flows (Parenthetical) - USD ($)
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Reconciliation of cash, cash equivalents, and restricted cash        
Cash and cash equivalents $ 24,209,000 $ 6,033,000 $ 6,162,000  
Restricted cash 600,000 700,000 700,000  
Cash, cash equivalents and restricted cash $ 24,809,000 $ 6,733,000 $ 6,862,000 $ 10,463,000