Other Income (Details Textual) - USD ($)	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Other Income [Line Items]
Other Nonoperating Income (Expense), Total	$ 0	$ 0	$ 417,000	$ 0	$ 417,000
Proceeds from Insurance Settlement, Investing Activities			$ 777,000	0	$ 777,000
Sale Leaseback Transaction, Net Proceeds, Investing Activities	1,619,000
Other Operating Income (Expense) [Member]
Other Income [Line Items]
Sale Leaseback Transaction, Current Period Gain Recognized	1,415,000
Sale Leaseback Transaction, Deferred Gain, Net	$ 65,000			$ 65,000