Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Loss Carryforwards [Line Items]
Undistributed earnings included in retained earnings	$ 2,600,000	$ 2,800,000
Unrecognized tax benefit	1,684,000	1,422,000	$ 1,142,000	$ 1,744,000
Unrecognized tax benefits reasonably possible change in amount	1,000,000
Gross [Member]
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefit	1,700,000	1,400,000
Impacting Effective Tax Rate [Member]
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefit	1,200,000	1,000,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry forward	$ 3,700,000	4,300,000
State and Local Jurisdiction [Member] | Maximum [Member]
Operating Loss Carryforwards [Line Items]
Expiration period	Jan. 01, 2034
State and Local Jurisdiction [Member] | Minimum [Member]
Operating Loss Carryforwards [Line Items]
Expiration period	Jan. 01, 2015
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry forward	$ 4,800,000	34,000,000
Tax Credit Carryforward, Amount	1,300,000
Federal operating losses prior years taxable income	34,000,000
Income tax interest and penalties	$ (100,000)	$ (100,000)