Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Textual)

v3.10.0.1
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