Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Amount of interest capitalized during the period.

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-Glossary Allowance for Funds Used during Construction

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Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Restatement of Prior Year Financial Statements (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2009	Dec. 31, 2008	Mar. 31, 2009
Balance Sheet [Abstract]
Capital lease asset under construction	$ 0us-gaap_CapitalLeasedAssetsGross	$ 2,949,000us-gaap_CapitalLeasedAssetsGross			$ 3,742,000us-gaap_CapitalLeasedAssetsGross
Obligations under capital lease - current portion	821,000	265,000
Obligations under capital lease - less current portion	3,838,000	3,209,000
Total assets	7,451,000us-gaap_Assets	5,029,000us-gaap_Assets
Total liabilities	5,489,000us-gaap_Liabilities	3,628,000us-gaap_Liabilities
Additional construction cost related to new gamma knef		2,880,000	3,742,000	3,742,000
Capitalized interest expense	51,000us-gaap_InterestCostsCapitalized	69,000us-gaap_InterestCostsCapitalized
Capital lease obligation, decrease in current liabilities		(260,000)us-gaap_DebtAndCapitalLeaseObligations
Amount Previously Reported [Member]
Balance Sheet [Abstract]
Capital lease asset under construction		0
Obligations under capital lease - current portion		525,000
Obligations under capital lease - less current portion		0
Total assets		2,080,000
Total liabilities		$ 679,000