Quarterly report pursuant to Section 13 or 15(d)

3. Accounts Receivable (Details)

v3.5.0.2
3. Accounts Receivable (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts receivable, gross $ 695 $ 931
Allowance for doubtful accounts 0 (56)
U.S. and State Government [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts receivable, gross 50 15
Commercial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts receivable, gross $ 645 $ 972