Basis Of Presentation And Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Basis of Presentation and Significant Accounting Policies [Abstract]

Schedule of available-for-sale securities

The following table sets forth the composition of securities available-for-sale as of December 31, 2014 and 2013 (in thousands):



As of December 31, 2014	Maturity in Years	Amortized Cost		Unrealized					Fair Value
As of December 31, 2014				Gains		Losses
Corporate debt securities	Less than 1 year	$	4,650	$	—	$	(5	)	$	4,645
Corporate debt securities	1-3 years	3,304		—		(14		)	3,290
		$	7,954	$	—	$	(19	)	$	7,935



As of December 31, 2013	Maturity in Years	Amortized Cost		Unrealized					Fair Value
As of December 31, 2013				Gains		Losses
Corporate debt securities	Less than 1 year	$	2,176	$	5	$	—		$	2,181
Corporate debt securities	1-3 years	5,499		—		(7		)	5,492
		$	7,675	$	5	$	(7	)	$	7,673

Securities available-for-sale primarily consist of investment grade corporate debt securities. We classify all securities as available-for-sale and as current assets, as the sale of such securities may be required prior to maturity to execute management strategies. These securities are carried at fair value, with the unrealized gains and losses reported as a component of accumulated other comprehensive loss in stockholders' equity until realized. Realized gains and losses from the sale of available-for-sale securities, if any, are determined on a specific identification basis. A decline in the market value of any available-for-sale security below cost that is determined to be other than temporary will result in an impairment charge to earnings and a new cost basis for the security is established. No such impairment charges were recorded for any period presented. It is not more likely than not that we will be required to sell investments before recovery of their amortized costs. Premiums and discounts are amortized or accreted over the life of the related security as an adjustment to yield using the straight-line method and included in interest income. Interest income is recognized when earned. Realized gains and losses on investments in securities are included in other income (expense) within the consolidated statements of comprehensive income (loss). The realized gains and losses on these sales were minimal for the years ended December 31, 2014 and 2013.

Schedule of Company's allowance for doubtful accounts and billing adjustments

The following table summarizes our allowance for doubtful accounts, billing adjustments and contractual allowances as of and for the years ended December 31, 2014, 2013, and 2012 (in thousands):



	Allowance for Doubtful Accounts ⁽¹⁾			Reserve for Billing Adjustments⁽²⁾			Reserve for Contractual Allowances⁽²⁾
Balance at December 31, 2011	$	748		$	356		$	—
Provision adjustment	224			232			—
Write-offs and recoveries, net	(459		)	(507		)	—
Balance at December 31, 2012	513			81			—
Provision adjustment	(150		)	29			—
Write-offs and recoveries, net	(93		)	(102		)	—
Balance at December 31, 2013	270			8			—
Provision adjustment	571			99			18,675
Write-offs and recoveries, net	(577		)	(100		)	(17,968		)
Balance at December 31, 2014	$	264		$	7		$	707


⁽¹⁾	The provision was charged against general and administrative expenses.


⁽²⁾	The provision was charged against Diagnostic Services revenue.

Schedule of excess and obsolete inventory

The following table summarizes our reserves for excess and obsolete inventory as of and for the years ended December 31, 2014, 2013, and 2012 (in thousands):



	Reserve for Excess and Obsolete Inventories⁽¹⁾
Balance at December 31, 2011	$	1,593
Provision adjustment	1,164
Write-offs and scrap	(192		)
Balance at December 31, 2012	2,565
Provision adjustment	210
Write-offs and scrap	(232		)
Balance at December 31, 2013	2,543
Provision adjustment	(630		)
Write-offs and scrap	—
Balance at December 31, 2014	$	1,913


⁽¹⁾	The provision was charged against Diagnostic Imaging cost of revenues.

Schedule of Company's warranty reserve activity

The activities related to our warranty reserve for the years ended December 31, 2014, 2013, and 2012 are as follows (in thousands):



	Year Ended December 31,
	2014			2013			2012
Balance at beginning of year	$	137		$	326		$	297
Charges to Diagnostic Imaging cost of revenues	286			149			453
Applied to liability	(247		)	(338		)	(424		)
Balance at end of year	$	176		$	137		$	326

Schedule of basic and diluted net loss per share computations

The following table sets forth the computation of basic and diluted net income (loss) per share for the periods indicated (in thousands, except per share amounts):



	Year Ended December 31,
	2014		2013		2012
Net income (loss)	$	2,475	$	264	$	(4,924	)

Shares used to compute basic net income (loss) per share	18,571		18,789		19,274
Dilutive potential common shares:
Stock options	307		359		—
Restricted stock units	—		11		—
Shares used to compute diluted net income (loss) per share	18,878		19,159		19,274

Basic net income (loss) per share	$	0.13	$	0.01	$	(0.26	)
Diluted net income (loss) per share	$	0.13	$	0.01	$	(0.26	)

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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