Discontinued Operations (Details) (USD $)			3 Months Ended
	Dec. 31, 2012	Mar. 31, 2012	Mar. 31, 2013 Legend subsidiary	Dec. 31, 2012 Legend subsidiary	Sep. 30, 2012 Legend subsidiary
Discontinued Operations
Non-cash impairment charge					$ 42,400,000
Period under agreement for earnout provision			2 years
Capital loss on sale			48,300,000
Revenues			18,700,000
Income before provision for income taxes			947,000
Assets
Cash and cash equivalents		2,251,000		2,303,000
Cash and cash equivalents - restricted				401,000
Investment securities				1,352,000
Receivables				10,345,000
Prepaid expenses and other current assets				749,000
Total current assets	15,150,000			15,150,000
Property and equipment, net				992,000
Goodwill				16,868,000
Other non-current assets				150,000
Total non-current assets	18,010,000			18,010,000
Total assets				33,160,000
Liabilities
Accounts payable				464,000
Accrued compensation				6,243,000
Other current liabilities				880,000
Total current liabilities	7,587,000			7,587,000
Non-current liabilities	281,000			281,000
Total liabilities				7,868,000
Assets less liabilities				$ 25,292,000