CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock	Comprehensive Income
Balance at Dec. 31, 2011
Increase (Decrease) in Stockholders' Equity
Revision (Note 1) (Restatement adjustment)		$ (4)	$ 4
Revision (Note 1) (in shares) (Restatement adjustment)		(430)
Balance at Dec. 31, 2012 (As previously reported)	82,922	126	903,688	(811,480)	(9,412)
Balance at Dec. 31, 2012	82,922	122	903,692	(811,480)	(9,412)
Balance (in shares) at Dec. 31, 2012 (As previously reported)		12,625			1,188
Balance (in shares) at Dec. 31, 2012		12,195			1,188
Comprehensive income (loss):
Net loss for the three months ended March 31, 2013	(2,717)			(2,717)
Comprehensive income	(2,717)					(2,717)
Non-cash compensation	1,433		1,433
Dividends	618		618
Issuance of common stock upon exercise of stock options and vesting of restricted stock units, net of withholding taxes	(670)	2	(672)
Issuance of common stock upon exercise of stock options and vesting of restricted stock units, net of withholding taxes (in shares)		227
Balance at Mar. 31, 2013	$ 81,586	$ 124	$ 905,071	$ (814,197)	$ (9,412)
Balance (in shares) at Mar. 31, 2013		12,422			1,188