Commitments and Contingencies (Details Textual)	Dec. 31, 2018 USD ($)
Customer indemnity right for settled case [Member] \| Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$ 88,000
Customer indemnity right for settled case [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	315,000
Customer indemnity right summary judgment [Member] \| Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	50,000
Customer indemnity right summary judgment [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$ 160,000