Note 6 - Accrued Liabilities

3 Months Ended

Mar. 31, 2013

Accounts Payable and Accrued Liabilities Disclosure [Text Block]

6.     Accrued Liabilities

Accrued liabilities consist of the following:

	December 31, 2012		March 31, 2013
Accrued liabilities:
Compensation and other benefit accruals	$	1,938	$	2,301
Accrued interest on Series A Preferred Stock		668		692
Other accruals		3,870		2,189
Total accrued liabilities	$	6,476	$	5,182