Summary of Significant Accounting Policies (Details 2) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Summary Of Significant Accounting Policies Details 2
Denominator for basic net income (loss) per share - weighted average shares	11,642,000	12,107,000	11,626,000	12,177,000
Effect of dilutive securities: Stock options and restricted stock units and awards	$ 0	$ 134,000	$ 0	$ 174,000
Denominator for diluted net income (loss) per share - weighted average shares	11,642,000	12,241,000	11,626,000	12,351,000