Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Operating revenues:
Total operating revenues	$ 14,866	$ 9,340	$ 24,440	$ 21,415
Operating costs:
Cost of goods sold	5,916	5,637	11,188	10,454
Selling, general and administrative	5,781	4,916	9,345	9,756
Interest expense	1,016	1,059	2,007	2,154
Amortization of intangibles	397	586	794	1,173
Total operating costs	13,110	12,198	23,334	23,537
Operating profit (loss)	1,756	(2,858)	1,106	(2,122)
Other income (expense):
Change in fair value of common stock warrant liability	(3,700)	(600)	(5,150)	(597)
Gain on extinguishment of long-term debt		396		396
Other, net	86	(57)	102	(112)
Total other income (expense)	(3,614)	(261)	(5,048)	(313)
Loss from continuing operations before income taxes	(1,858)	(3,119)	(3,942)	(2,435)
Income tax expense	15	36	93	81
Loss from continuing operations	(1,873)	(3,155)	(4,035)	(2,516)
Loss from discontinued operations, net of income taxes	(51)	(735)	(655)	(2,620)
Net earnings (loss)	(1,924)	(3,890)	(4,690)	(5,136)
Loss attributable to noncontrolling interest
Net loss attributable to Signature Group Holdings, Inc.	(1,924)	(3,890)	(4,690)	(5,136)
Basic and diluted:
Loss from continuing operations	$ (0.02)	$ (0.03)	$ (0.03)	$ (0.02)
Loss from discontinued operations, net of income taxes		$ (0.01)	$ (0.01)	$ (0.02)
Net loss attributable to Signature Group Holdings, Inc.	$ (0.02)	$ (0.04)	$ (0.04)	$ (0.04)
Industrial Supply
Operating revenues:
Total operating revenues	9,452	9,062	17,823	16,905
Signature Special Situations
Operating revenues:
Total operating revenues	5,414	278	6,617	4,510
Corporate and Other
Operating revenues:
Total operating revenues