XML 52 R39.htm IDEA: XBRL DOCUMENT v3.3.1.900
ACCOUNTS RECEIVABLE - Summary of accounts receivable (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Accounts receivable    
Trade receivables $ 557 $ 1,741
Other 724 653
Total 1,281 2,394
Less: allowance for doubtful accounts (25) (25)
Net accounts receivable $ 1,256 $ 2,369