Annual report pursuant to Section 13 and 15(d)

Schedule II--Valuation and Qualifying Accounts (Details)

v3.3.1.900
Schedule II--Valuation and Qualifying Accounts (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Allowances for accounts receivable      
Valuation and qualifying accounts      
Beginning Balance $ 1,819 $ 1,429 $ 1,586
Charged to Cost and Expense (181) 189 188
Deductions (30) (201) 345
Ending Balance 1,668 1,819 1,429
Reserve for inventory obsolescence      
Valuation and qualifying accounts      
Beginning Balance 10 16 27
Charged to Cost and Expense 13 6 5
Deductions 7 12 16
Ending Balance $ 16 $ 10 $ 16