Fair Value Measurements

6 Months Ended

Jun. 30, 2017

Fair Value Measurements [Abstract]

Fair Value Measurements

8.Fair Value Measurements

Assets and liabilities recorded at fair value on the balance sheets are categorized based upon the level of judgment associated with the inputs used to measure the fair value.  Level inputs are as follows:

Level 1 – quoted prices in active markets for identical assets or liabilities.

Level 2 – other significant observable inputs for the assets or liabilities through corroboration with market data at the       measurement date.

Level 3 – significant unobservable inputs that reflect management's best estimate of what market participants would use to price the assets or liabilities at the measurement date.

The following table summarizes fair value measurements by level at June 30, 2017 for assets and liabilities measured at fair value on a recurring basis:

(In thousands)	Level I		Level II		Level III			Total
Cash equivalents	$	53,485	$	—	$	—		$	53,485
Warrant liabilities		—		—		(6,567	)		(6,567	)

The following table summarizes fair value measurements by level at December 31, 2016 for assets and liabilities measured at fair value on a recurring basis:

(In thousands)	Level I		Level II		Level III			Total
Cash equivalents	$	56,276	$	—	$	—		$	56,276
Warrant liabilities		—		—		(3,789	)		(3,789	)

Liabilities measured at market value on a recurring basis include warrant liabilities resulting from recent debt and equity financings. In accordance with ASC 815-40, the warrant liabilities are marked to market each quarter-end until they are completely settled. The warrants are valued using the Black-Scholes method, using assumptions consistent with our application of ASC 505-50. The $2.8 million increase in fair value of the warrant liabilities is due to the significant excess of the exercise price over the Company's stock price as of June 30, 2017 and the close proximity to the expiration date of the warrants (see Note 6).

We consider carrying amounts of accounts receivable, accounts payable and accrued expenses to approximate fair value due to the short-term nature of these financial instruments.  

Our non-financial assets are measured at fair value when there is an indicator of impairment and recorded at fair value only when an impairment charge is recognized.  Our non-financial assets were not material at June 30, 2017 or 2016.