Business Description and Summary of Significant Accounting Policies (Detail Textuals) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Business Description and Summary Of Significant Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 103			$ 103		$ 130
Inventory reserve	733			733		778
Income taxes paid	136		0	136	256
Interest paid	10		12	31	38
Exercise of stock options, net of income tax benefit		$ 21