Business Description and Summary of Significant Accounting Policies (Detail Textuals) - USD ($)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Business Description and Summary Of Significant Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 59,000		$ 66,000
Inventory reserve	1,309,000		$ 1,254,000
Income taxes paid	136,000
Income taxes refunded (net of payments)		$ 36,000
Interest paid	$ 43,000	$ 19,000