Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Stockholders' Equity:
Redeemable preferred stock, par value	$ 0.01	$ 0.01
Redeemable preferred stock, authorized shares	0	0
Redeemable preferred stock, issued shares	0	0
Redeemable preferred stock, shares outstanding	0	0
Redeemable preferred stock, liquidation preference	$ 0	$ 0
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized shares	38,833,334	38,833,334
Common stock, issued shares	20,672,029	20,591,240
Common stock, outstanding shares	20,672,029	20,591,240
Blank Check Preferred Stock [Member]
Stockholders' Equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, authorized shares	5,000,000	5,000,000
Preferred stock, issued shares	0	0
Preferred stock, shares outstanding	0	0
Preferred Stock Series A [Member]
Stockholders' Equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, authorized shares	0	0
Preferred stock, issued shares	0	0
Preferred stock, shares outstanding	0	0
Preferred stock, liquidation preference	$ 0	$ 0