Annual report pursuant to Section 13 and 15(d)

Income Taxes (Reconciliation Actual Income Taxes to Expected Federal Corporate Taxes) (Details)

v3.5.0.2
Income Taxes (Reconciliation Actual Income Taxes to Expected Federal Corporate Taxes) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Income Tax Disclosure [Abstract]                      
Expected U.S. federal corporate income tax rate, percent                 34.00%    
Tax benefit at the U.S. rate                 $ (1,890) $ (1,630) $ (4,440)
Effect of permanent book-tax differences                 1,120 (1,570) 30
State tax provision                 110 (40) 80
Valuation allowance for net deferred tax assets                 2,690 2,490 3,900
Uncertain tax items                 350 330 370
Foreign tax rate differential                 1,050 1,890 1,000
Other items                 (330) 440 300
Total provision $ 1,060 $ 70 $ 1,670 $ 300 $ 1,270 $ 290 $ 170 $ 180 $ 3,100 $ 1,910 $ 1,240