Business Description and Summary of Significant Accounting Policies (Detail Textuals) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 83,000		$ 88,000
Inventory reserve	1,475,000		1,429,000
Grant received from Company's CPG			$ 700,000
Income taxes paid	134,000	$ 136,000
Interest paid	$ 36,000	$ 43,000