STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2014

StockBasedCompensationTablesAbstract

Stock option plan activity

	Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)
Balance at December 31, 2011		1,707,713		$	0.76		7.6
Granted		1,437,500		$	0.89		—
Expired/Cancelled		(89,068	)	$	0.92		—
Exercised		(24,924	)	$	0.29		—
Balance at December 31, 2012		3,031,221		$	0.82		7.9
Granted		817,500		$	1.39		—
Expired/Cancelled		(30,000	)	$	0.74		—
Exercised		(35,310	)	$	0.31		—
Balance at December 31, 2013		3,783,411		$	0.94		7.4
Granted		435,000		$	2.13		—
Expired/Cancelled		(62,498	)	$	1.96		—
Exercised		(98,617	)	$	0.68		—
Balance at December 31, 2014		4,057,296		$	1.06		6.8

Stock options outstanding and exercisable

		Options Outstanding						Options Exercisable
Exercise Price				Weighted-
				Average		Weighted-				Weighted-
		Number		Remaining Life		Average		Number		Average
		Outstanding		(Years)		Exercise Price		Exercisable		Exercise Price
$	0.17–0.24		420,221		4.0	$	0.19		420,221	$	0.19
$	0.54-0.74		752,580		5.7	$	0.72		716,346	$	0.72
$	0.77-1.15		2,047,495		7.1	$	0.95		1,740,144	$	0.96
$	1.45-2.74		837,000		8.7	$	2.07		186,681	$	2.10
Total			4,057,296						3,063,392

Common stock reserved for future issuance

	Common Stock
Convertible preferred stock – Series B		46,029
Convertible lines of credit		1,649,548
Stock options outstanding		4,057,296
Warrants outstanding		977,778
Restricted stock grants		—
Authorized for future grant under stock option plans		2,651,932
		9,382,583