Stock Plans (Stock Option Activity) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Number of Shares
Balance at beginning of period	923,756
Granted	175,306
Exercised	(19,500)
Cancelled	(217,256)
Balance at end of period	862,306
Vested and expected to vest	848,161
Exercisable	759,936	807,146	884,959
Weighted Average Exercise Price
Balance at beginning of period	$ 11.67
Granted	$ 7.56
Exercised	$ 7.34
Cancelled	$ 10.43
Balance at end of period	$ 11.24
Vested and expected to vest	$ 11.31
Exercisable	$ 11.51	$ 11.53	$ 11.14
Additional Disclosures
Options, outstanding, weighted average remaining contractual term (in years)	4 years 6 months 30 days
Options, outstanding, aggregate intrinsic value	$ 150,166
Options, vested and expected to vest, weighted average remaining contractual term (in years)	4 years 6 months
Options, vested and expected to vest, aggregate intrinsic value	137,004
Options, exercisable, weighted average remaining contractual term (in years)	4 years 0 months 15 days
Options, exercisable, aggregate intrinsic value	$ 77,416
Chief Operating Officer [Member]
Number of Shares
Granted	175,000