Stockholders' Equity (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stockholders Equity
Maximum number of shares authorized for grant	1,500,000
Number of shares available for grant	401,374
Restricted stock
Stockholders Equity
Vesting rights percentage each year beginning on the second anniversary date of the grant	20.00%
Service period over which the aggregate market value of stock is being amortized	6 years
Compensation expense (in dollars)	$ 291,000	$ 313,000	$ 407,000
Number of Shares
Nonvested at the beginning of the period (in shares)	574,000
Granted (in shares)	153,000
Vested (in shares)	(133,400)
Forfeited (in shares)	(19,600)
Nonvested at the end of the period (in shares)	574,000	574,000
Weighted Average Grant Date Fair Value
Nonvested at the beginning of the period (in dollars per share)	$ 2.04
Granted (in dollars per share)	$ 1.80	$ 1.04	$ 1.78
Vested (in dollars per share)	$ 2.96
Forfeited (in dollars per share)	$ 1.64
Nonvested at the end of the period (in dollars per share)	$ 1.77	$ 2.04
Additional disclosure
Total fair value of shares vested during the period (in dollars)	394,000	474,000	547,000
Compensation expense (in dollars)	291,000	313,000	407,000
Total unrecognized compensation cost (in dollars)	502,000
Weighted-average period for recognition of total unrecognized compensation cost	3 years 7 months 6 days
Stock Options
Stockholders Equity
Options outstanding (in shares)			0
Options granted (in shares)	0
Options exercised (in shares)	0
Compensation expense (in dollars)	0	0	0
Additional disclosure
Compensation expense (in dollars)	$ 0	$ 0	$ 0