CAPITAL STOCK (Tables)

9 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of weighted average valuation assumptions

The fair value of each option grant was estimated on the date of grant using the Black-Scholes option- pricing model with the following weighted average assumptions for options granted in the three and nine months ended September 30, 2015 and 2016.



	Three Months Ended September 30,		Nine Months Ended September 30,
	2015	2016	2015	2016
Risk-free interest rate	1.15%	1.14%	1.16%	1.19%
Expected lives	3.4 years	4.5 years	3.4 years	4.5 years
Expected volatility	40%	40%	42%	41%
Expected dividend yield	0%	0%	0%	0%

Schedule of stock options plans

A summary of our stock option plans, excluding options to purchase fractional shares resulting from our December 2010 1-for-10 reverse stock split, is as follows:



	Year Ended December 31,				Nine months ended September 30, 2016
	2015				2016
	Options		Weighted Average Exercise Price		Options		Weighted Average Exercise Price
Outstanding at beginning of period	1,074,251		$	10.110	940,610		$	14.163
Granted at Market	146,446		$	36.904	19,855		$	39.467
Canceled	(28,440	)	$	10.080	(463	)	$	14.881
Exercised	(251,647	)	$	10.559	(107,995	)	$	13.528
Outstanding at end of period	940,610		$	14.163	852,007		$	14.833
Exercisable at end of period	621,559		$	10.269	631,884		$	11.560

Schedule of shares authorized under stock options plans by exercise price

The following table summarizes information about stock options outstanding and exercisable at September 30, 2016, excluding outstanding options to purchase an aggregate of 3.5 fractional shares resulting from our December 2010 1-for-10 reverse stock split with a weighted average remaining contractual life of 0.2 years, a weighted average exercise price of $17.93 and exercise prices ranging from $17.17 - $22.50. We intend to issue whole shares only from option exercises.



	Options Outstanding				Options Exercisable
Exercise Prices	Number of Options Outstanding at September 30, 2016	Weighted Average Remaining Contractual Life in Years	Weighted Average Exercise Price		Number of Options Exercisable at September 30, 2016	Weighted Average Exercise Price
$ 4.40 - $ 6.90	216,095	4.13	$	5.597	214,595	$	5.593
$ 6.91 - $ 7.36	181,584	7.14	$	7.360	127,298	$	7.360
$ 7.37 - $15.80	150,463	6.02	$	9.391	137,259	$	9.350
$15.81 - $28.41	167,360	6.09	$	19.823	112,489	$	20.490
$28.42 - $54.68	136,505	9.28	$	39.274	40,243	$	39.235
$ 4.40 - $54.68	852,007	6.32	$	14.833	631,884	$	11.560

Schedule of pricing models

The weighted average assumptions used for the periods presented were as follows:



	Three Months Ended September 30,		Nine Months Ended September 30,
	2015	2016	2015	2016
Risk-free interest rate	0.26%	0.57%	0.25%	0.54%
Expected lives	1.2 years	1.2 years	1.2 years	1.2 years
Expected volatility	36%	44%	36%	43%
Expected dividend yield	0%	0%	0%	0%

- Definition

Tabular disclosure of the application of the fair value option for measurement and reporting of eligible financial assets and liabilities (as defined), as well as certain other eligible items (as defined) included in the statement of financial position, whether such option is elected for a single eligible item or a group of similar eligible items and is in addition to other disclosures concerning fair value which the company may be required to provide. Such disclosure might be expected to include: (1) for items included in the statement of financial position: (a) for each line item in the statement of financial position that includes an item or items for which the fair value option has been elected, provide the aggregate carrying amount of ineligible items included in each line item in the balance sheet, if any; (b) the difference between the aggregate fair value and the aggregate unpaid principal balance (assuming contractual principal amounts and fair value option elected) of: (i) loans and long-term receivables (other than securities otherwise reported at fair value) and (ii) long-term debt instruments; (c) for loans held as assets for which the fair value option has been elected: (i) the aggregate fair value of loans that are 90 days or more past due, (ii) if the policy is to recognize interest income separately from other changes in fair value, the aggregate fair value of loans in nonaccrual status, and (iii) the difference between the aggregate fair value and the aggregate unpaid principal balance for loans that are 90 days or more past due, in nonaccrual status, or both; (2) for items included in the income statement: (a) the amounts of gains and losses from fair value changes included in earnings and in which line in the income statement those gains and losses are reported whether or not combined with gains and losses from items required to be accounted for at fair value; (b) for loans and other receivables held as assets, the estimated amount of gains or losses included in earnings attributable to changes in instrument-specific credit risk; (c) for liabilities with fair values that have been significantly affected during the reporting period by changes in the instrument-specific credit risk, the estimated amount of gains and losses from fair value changes included in earnings that are attributable to changes in the instrument-specific credit risk; and (3) certain other disclosures as required or determined to be provided.

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