Business Description and Summary of Significant Accounting Policies (Detail Textuals) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 77,000	$ 88,000
Inventory reserve	1,513,000	1,429,000
Grant received from Company's CPG		700,000
Income taxes paid	684,000	622,000
Interest paid	$ 72,000	$ 77,000