XML 25 R47.htm IDEA: XBRL DOCUMENT

Wind-Down Expenses (Details) (USD $)	3 Months Ended			12 Months Ended
Wind-Down Expenses (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Facility Closing In Rhode Island [Member]	Dec. 31, 2012 Facility Closing In Rhode Island [Member]	Dec. 31, 2011 Facility Closing In Rhode Island [Member]
Components of wind-down reserve
Accrued wind-down reserve at beginning of period				$ 854,000	$ 1,683,000
Less actual expenses recorded against estimated reserve during the period			(372,000)	(1,185,000)
Additional expense recorded to revise estimated reserve at period-end			23,000	356,000
Revised reserve at period-end			505,000	854,000
Add deferred rent at period end	(15,575)	(19,031)	124,000	249,000
Total accrued wind-down expenses at period-end, current			$ 629,000	$ 1,103,000