Note 11 - Commitments and Contingencies (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended		6 Months Ended	9 Months Ended	12 Months Ended
	Jan. 31, 2013	Sep. 30, 2012 sqft	Mar. 31, 2011	Jun. 30, 2011	Sep. 30, 2012 sqft	Dec. 31, 2012	Sep. 14, 2009
Loss Contingency, Estimate of Possible Loss							$ 750
Loss Contingency, Damages Sought, Value			3,000
Area of Real Estate Property (in Square Meters and Square feet)		77,000			77,000
Minimum Remaining Terms of Leases and Concessions on Undeveloped Acreage				126 months
Purchase Commitment, Remaining Minimum Amount Committed				650
Long-term Purchase Commitment, Amount				700
Other Cost and Expense, Operating				165
Payments for (Proceeds from) Tenant Allowance				575
Rent Contract Length		10 years			10 years
Operating Leases, Rent Expense	1,139	795			2,197
Rent Increase Percentage		2.00%			2.00%
Capital Lease Obligations Incurred						$ 1,084
Lease Per Day						$3
Carlstadt [Member]
Area of Real Estate Property (in Square Meters and Square feet)				77,000
New York City [Member]
Area of Real Estate Property (in Square Meters and Square feet)		106,000			106,000
Eighth Floor [Member]
Lease Per Month						$15
Basement Space [Member]
Lease Per Month						$2