Annual report pursuant to Section 13 and 15(d)

Lease and Note Obligations (Details Textual)

v3.6.0.2
Lease and Note Obligations (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]      
Long-term Debt, Gross $ 7,000    
Debt Instrument, Interest Rate, Stated Percentage 6.27%    
Operating Leases, Rent Expense, Net, Total $ 400 $ 342 $ 343
Lessee Leasing Arrangements, Operating Leases, Term of Contract 5 years    
Lessee Leasing Arrangements, Operating Leases, Renewal Term 5 years    
Capital Lease Obligations [Member]      
Debt Instrument [Line Items]      
Long-term Debt, Gross $ 166    
Debt Instrument, Interest Rate, Stated Percentage 4.70%    
Debt Instrument, Maturity Date Jul. 01, 2020    
Debt Instrument Minimum Monthly Payments $ 3    
Notes Payable, Other Payables [Member]      
Debt Instrument [Line Items]      
Long-term Debt, Gross $ 200    
Debt Instrument, Interest Rate, Stated Percentage 7.00%    
Debt Instrument, Maturity Date May 31, 2017    
Debt Instrument Minimum Monthly Payments $ 4