ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2013

Dec. 31, 2012

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

Schedule of accounts payable and accrued liabilities

	JUNE 30, 2013		DECEMBER 31, 2012
	(in thousands)
Accounts payable	$	1,405	$	1,752
Accrued compensation and benefits		814		834
Accrued expenses		2,297		2,686
	$	4,516	$	5,272

	DECEMBER 31,
	2012		2011
	(in thousands)
Accounts payable	$	1,752	$	767
Accrued expenses		2,686		2,457
Accrued compensation and benefits		834		525
	$	5,272	$	3,749